diff --git a/CHANGELOG.md b/CHANGELOG.md
index 45f8b27c..8ff32b27 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,17 @@
 # offline-editor-js - Changelog
 
+## Version 3.5.0 - September 15, 2016
+
+Possible breaking changes. Changes to database storage pattern.
+
+**Enhancements**
+* Added compression to the tiles database URL field, resulting in approximately 50% reduction in that field's size. This will make the largest difference when storing thousands of tiles.
+* Closes #482 - clarify tile reporting in simple-tiles.html sample app.
+* Minor doc updates.
+
 ## Version 3.4.0 - September 13, 2016
 
-Possible breaking changes.
+Possible breaking changes. Changes to database storage pattern.
 
 **Enhancements**
 * Added base64 re-encoding to the tile database that results in a 2.7x (16/6) reduction in storage size.
diff --git a/Gruntfile.js b/Gruntfile.js
index 72e505ee..1007f4c0 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -34,6 +34,7 @@ module.exports = function(grunt) {
                     'lib/tiles/TilesCore.js',
                     'lib/tiles/TilesStore.js',
                     'lib/tiles/base64string.js',
+                    'lib/stiles/lzString.js',
                     'lib/tiles/tilingScheme.js',
                     'lib/tpk/autoCenterMap.js',
                     'lib/tpk/OfflineTpkNS.js',
@@ -76,6 +77,7 @@ module.exports = function(grunt) {
                     'lib/tiles/OfflineTilesNS.js',
                     'lib/tiles/base64utils.js',
                     'lib/tiles/base64string.js',
+                    'lib/tiles/lzString.js',
                     'lib/tiles/FileSaver.js',
                     'lib/tiles/TilesCore.js',
                     'lib/tiles/TilesStore.js',
@@ -90,6 +92,7 @@ module.exports = function(grunt) {
                     'lib/tiles/OfflineTilesNS.js',
                     'lib/tiles/base64utils.js',
                     'lib/tiles/base64string.js',
+                    'lib/tiles/lzString.js',
                     'lib/tiles/FileSaver.js',
                     'lib/tiles/TilesCore.js',
                     'lib/tiles/TilesStore.js',
diff --git a/dist/offline-edit-advanced-src.js b/dist/offline-edit-advanced-src.js
index cc5dd9e0..f8d920a1 100644
--- a/dist/offline-edit-advanced-src.js
+++ b/dist/offline-edit-advanced-src.js
@@ -1,4 +1,4 @@
-/*! esri-offline-maps - v3.4.0 - 2016-09-13
+/*! esri-offline-maps - v3.5.0 - 2016-09-15
 *   Copyright (c) 2016 Environmental Systems Research Institute, Inc.
 *   Apache License*/
 // Configure offline/online detection
diff --git a/dist/offline-edit-basic-src.js b/dist/offline-edit-basic-src.js
index c38cd2c6..ec5be5e1 100644
--- a/dist/offline-edit-basic-src.js
+++ b/dist/offline-edit-basic-src.js
@@ -1,4 +1,4 @@
-/*! esri-offline-maps - v3.4.0 - 2016-09-13
+/*! esri-offline-maps - v3.5.0 - 2016-09-15
 *   Copyright (c) 2016 Environmental Systems Research Institute, Inc.
 *   Apache License*/
 // Configure offline/online detection
diff --git a/dist/offline-tiles-advanced-min.js b/dist/offline-tiles-advanced-min.js
index dee7390c..44541d7a 100644
--- a/dist/offline-tiles-advanced-min.js
+++ b/dist/offline-tiles-advanced-min.js
@@ -92,7 +92,48 @@ break
 case 15:d.push(String.fromCharCode(b|c)),e=0}f++}return this.decompress(d.join(""))},_keyStr:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",decompress:function(a){for(var b,c,d,e,f,g,h,i=[],j=1,k=a.charCodeAt(0)>>8;j<2*a.length&&(j<2*a.length-1||0===k);)j%2===0?(b=a.charCodeAt(j/2)>>8,c=255&a.charCodeAt(j/2),d=j/2+1<a.length?a.charCodeAt(j/2+1)>>8:NaN):(b=255&a.charCodeAt((j-1)/2),(j+1)/2<a.length?(c=a.charCodeAt((j+1)/2)>>8,d=255&a.charCodeAt((j+1)/2)):c=d=NaN),j+=3,e=b>>2,f=(3&b)<<4|c>>4,g=(15&c)<<2|d>>6,h=63&d,isNaN(c)||j==2*a.length+1&&k?g=h=64:(isNaN(d)||j==2*a.length&&k)&&(h=64),i.push(this._keyStr.charAt(e)),i.push(this._keyStr.charAt(f)),i.push(this._keyStr.charAt(g)),i.push(this._keyStr.charAt(h))
 return i.join("")},compress:function(a){var b,c,d,e,f,g,h,i,j=[],k=1,l=0,m=!1
 for(a=a.replace(/[^A-Za-z0-9\+\/\=]/g,"");l<a.length;)f=this._keyStr.indexOf(a.charAt(l++)),g=this._keyStr.indexOf(a.charAt(l++)),h=this._keyStr.indexOf(a.charAt(l++)),i=this._keyStr.indexOf(a.charAt(l++)),c=f<<2|g>>4,d=(15&g)<<4|h>>2,e=(3&h)<<6|i,k%2===0?(b=c<<8,m=!0,64!=h&&(j.push(String.fromCharCode(b|d)),m=!1),64!=i&&(b=e<<8,m=!0)):(j.push(String.fromCharCode(b|c)),m=!1,64!=h&&(b=d<<8,m=!0),64!=i&&(j.push(String.fromCharCode(b|e)),m=!1)),k+=3
-return m?(j.push(String.fromCharCode(b)),j=j.join(""),j=String.fromCharCode(256|j.charCodeAt(0))+j.substring(1)):j=j.join(""),j}},O.esri.Tiles.saveAs=function(a){"use strict"
+return m?(j.push(String.fromCharCode(b)),j=j.join(""),j=String.fromCharCode(256|j.charCodeAt(0))+j.substring(1)):j=j.join(""),j}},O.esri.Tiles.LZString=function(){function a(a,b){if(!e[a]){e[a]={}
+for(var c=0;c<a.length;c++)e[a][a.charAt(c)]=c}return e[a][b]}var b=String.fromCharCode,c="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",d="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+-$",e={},f={compressToBase64:function(a){if(null==a)return""
+var b=f._compress(a,6,function(a){return c.charAt(a)})
+switch(b.length%4){default:case 0:return b
+case 1:return b+"==="
+case 2:return b+"=="
+case 3:return b+"="}},decompressFromBase64:function(b){return null==b?"":""==b?null:f._decompress(b.length,32,function(d){return a(c,b.charAt(d))})},compressToUTF16:function(a){return null==a?"":f._compress(a,15,function(a){return b(a+32)})+" "},decompressFromUTF16:function(a){return null==a?"":""==a?null:f._decompress(a.length,16384,function(b){return a.charCodeAt(b)-32})},compressToUint8Array:function(a){for(var b=f.compress(a),c=new Uint8Array(2*b.length),d=0,e=b.length;e>d;d++){var g=b.charCodeAt(d)
+c[2*d]=g>>>8,c[2*d+1]=g%256}return c},decompressFromUint8Array:function(a){if(null===a||void 0===a)return f.decompress(a)
+for(var c=new Array(a.length/2),d=0,e=c.length;e>d;d++)c[d]=256*a[2*d]+a[2*d+1]
+var g=[]
+return c.forEach(function(a){g.push(b(a))}),f.decompress(g.join(""))},compressToEncodedURIComponent:function(a){return null==a?"":f._compress(a,6,function(a){return d.charAt(a)})},decompressFromEncodedURIComponent:function(b){return null==b?"":""==b?null:(b=b.replace(/ /g,"+"),f._decompress(b.length,32,function(c){return a(d,b.charAt(c))}))},compress:function(a){return f._compress(a,16,function(a){return b(a)})},_compress:function(a,b,c){if(null==a)return""
+var d,e,f,g={},h={},i="",j="",k="",l=2,m=3,n=2,o=[],p=0,q=0
+for(f=0;f<a.length;f+=1)if(i=a.charAt(f),Object.prototype.hasOwnProperty.call(g,i)||(g[i]=m++,h[i]=!0),j=k+i,Object.prototype.hasOwnProperty.call(g,j))k=j
+else{if(Object.prototype.hasOwnProperty.call(h,k)){if(k.charCodeAt(0)<256){for(d=0;n>d;d++)p<<=1,q==b-1?(q=0,o.push(c(p)),p=0):q++
+for(e=k.charCodeAt(0),d=0;8>d;d++)p=p<<1|1&e,q==b-1?(q=0,o.push(c(p)),p=0):q++,e>>=1}else{for(e=1,d=0;n>d;d++)p=p<<1|e,q==b-1?(q=0,o.push(c(p)),p=0):q++,e=0
+for(e=k.charCodeAt(0),d=0;16>d;d++)p=p<<1|1&e,q==b-1?(q=0,o.push(c(p)),p=0):q++,e>>=1}l--,0==l&&(l=Math.pow(2,n),n++),delete h[k]}else for(e=g[k],d=0;n>d;d++)p=p<<1|1&e,q==b-1?(q=0,o.push(c(p)),p=0):q++,e>>=1
+l--,0==l&&(l=Math.pow(2,n),n++),g[j]=m++,k=String(i)}if(""!==k){if(Object.prototype.hasOwnProperty.call(h,k)){if(k.charCodeAt(0)<256){for(d=0;n>d;d++)p<<=1,q==b-1?(q=0,o.push(c(p)),p=0):q++
+for(e=k.charCodeAt(0),d=0;8>d;d++)p=p<<1|1&e,q==b-1?(q=0,o.push(c(p)),p=0):q++,e>>=1}else{for(e=1,d=0;n>d;d++)p=p<<1|e,q==b-1?(q=0,o.push(c(p)),p=0):q++,e=0
+for(e=k.charCodeAt(0),d=0;16>d;d++)p=p<<1|1&e,q==b-1?(q=0,o.push(c(p)),p=0):q++,e>>=1}l--,0==l&&(l=Math.pow(2,n),n++),delete h[k]}else for(e=g[k],d=0;n>d;d++)p=p<<1|1&e,q==b-1?(q=0,o.push(c(p)),p=0):q++,e>>=1
+l--,0==l&&(l=Math.pow(2,n),n++)}for(e=2,d=0;n>d;d++)p=p<<1|1&e,q==b-1?(q=0,o.push(c(p)),p=0):q++,e>>=1
+for(;;){if(p<<=1,q==b-1){o.push(c(p))
+break}q++}return o.join("")},decompress:function(a){return null==a?"":""==a?null:f._decompress(a.length,32768,function(b){return a.charCodeAt(b)})},_decompress:function(a,c,d){var e,f,g,h,i,j,k,l,m=[],n=4,o=4,p=3,q="",r=[],s={val:d(0),position:c,index:1}
+for(f=0;3>f;f+=1)m[f]=f
+for(h=0,j=Math.pow(2,2),k=1;k!=j;)i=s.val&s.position,s.position>>=1,0==s.position&&(s.position=c,s.val=d(s.index++)),h|=(i>0?1:0)*k,k<<=1
+switch(e=h){case 0:for(h=0,j=Math.pow(2,8),k=1;k!=j;)i=s.val&s.position,s.position>>=1,0==s.position&&(s.position=c,s.val=d(s.index++)),h|=(i>0?1:0)*k,k<<=1
+l=b(h)
+break
+case 1:for(h=0,j=Math.pow(2,16),k=1;k!=j;)i=s.val&s.position,s.position>>=1,0==s.position&&(s.position=c,s.val=d(s.index++)),h|=(i>0?1:0)*k,k<<=1
+l=b(h)
+break
+case 2:return""}for(m[3]=l,g=l,r.push(l);;){if(s.index>a)return""
+for(h=0,j=Math.pow(2,p),k=1;k!=j;)i=s.val&s.position,s.position>>=1,0==s.position&&(s.position=c,s.val=d(s.index++)),h|=(i>0?1:0)*k,k<<=1
+switch(l=h){case 0:for(h=0,j=Math.pow(2,8),k=1;k!=j;)i=s.val&s.position,s.position>>=1,0==s.position&&(s.position=c,s.val=d(s.index++)),h|=(i>0?1:0)*k,k<<=1
+m[o++]=b(h),l=o-1,n--
+break
+case 1:for(h=0,j=Math.pow(2,16),k=1;k!=j;)i=s.val&s.position,s.position>>=1,0==s.position&&(s.position=c,s.val=d(s.index++)),h|=(i>0?1:0)*k,k<<=1
+m[o++]=b(h),l=o-1,n--
+break
+case 2:return r.join("")}if(0==n&&(n=Math.pow(2,p),p++),m[l])q=m[l]
+else{if(l!==o)return null
+q=g+g.charAt(0)}r.push(q),m[o++]=g+q.charAt(0),n--,g=q,0==n&&(n=Math.pow(2,p),p++)}}}
+return f}(),O.esri.Tiles.saveAs=function(a){"use strict"
 var b=a.document,c=function(){return a.URL||a.webkitURL||a},d=a.URL||a.webkitURL||a,e=b.createElementNS("http://www.w3.org/1999/xhtml","a"),f=!a.externalHost&&"download"in e,g=a.webkitRequestFileSystem,h=a.requestFileSystem||g||a.mozRequestFileSystem,i=function(b){(a.setImmediate||a.setTimeout)(function(){throw b},0)},j="application/octet-stream",k=0,l=[],m=function(){for(var a=l.length;a--;){var b=l[a]
 "string"==typeof b?d.revokeObjectURL(b):b.remove()}l.length=0},n=function(a,b,c){b=[].concat(b)
 for(var d=b.length;d--;){var e=a["on"+b[d]]
@@ -132,16 +173,16 @@ var k=new f(parseFloat(d.initialExtent.xmin),parseFloat(d.initialExtent.ymin),pa
 m.origin=n,m.lods=j,b({initExtent:k,fullExtent:l,tileInfo:m,resultObj:d})})}},O.esri.Tiles.TilesStore=function(){this._db=null,this.dbName="offline_tile_store",this.objectStoreName="tilepath",this.isSupported=function(){return!(!window.indexedDB&&!window.openDatabase)},this.store=function(a,b){try{var c=this._db.transaction([this.objectStoreName],"readwrite")
 c.oncomplete=function(){b(!0)},c.onerror=function(a){b(!1,a.target.error.message)}
 var d=c.objectStore(this.objectStoreName)
-a.img=O.esri.Tiles.Base64String.compress(a.img)
+a.url=O.esri.Tiles.LZString.compress(a.url),a.img=O.esri.Tiles.Base64String.compress(a.img)
 var e=d.put(a)
-e.onsuccess=function(){}}catch(f){b(!1,f.stack)}},this.retrieve=function(a,b){if(null!==this._db){var c=this._db.transaction([this.objectStoreName]).objectStore(this.objectStoreName),d=c.get(a)
+e.onsuccess=function(){}}catch(f){b(!1,f.stack)}},this.retrieve=function(a,b){if(null!==this._db){var c=this._db.transaction([this.objectStoreName]).objectStore(this.objectStoreName),d=c.get(O.esri.Tiles.LZString.compress(a))
 d.onsuccess=function(a){var c=a.target.result
-void 0===c?b(!1,"not found"):(c.img=O.esri.Tiles.Base64String.decompress(c.img),b(!0,c))},d.onerror=function(a){b(!1,a)}}},this.deleteAll=function(a){if(null!==this._db){var b=this._db.transaction([this.objectStoreName],"readwrite").objectStore(this.objectStoreName).clear()
+void 0===c?b(!1,"not found"):(c.url=O.esri.Tiles.LZString.decompress(c.url),c.img=O.esri.Tiles.Base64String.decompress(c.img),b(!0,c))},d.onerror=function(a){b(!1,a)}}},this.deleteAll=function(a){if(null!==this._db){var b=this._db.transaction([this.objectStoreName],"readwrite").objectStore(this.objectStoreName).clear()
 b.onsuccess=function(){a(!0)},b.onerror=function(b){a(!1,b)}}else a(!1,null)},this["delete"]=function(a,b){if(null!==this._db){var c=this._db.transaction([this.objectStoreName],"readwrite").objectStore(this.objectStoreName)["delete"](a)
 c.onsuccess=function(){b(!0)},c.onerror=function(a){b(!1,a)}}else b(!1,null)},this.getAllTiles=function(a){if(null!==this._db){var b=this._db.transaction([this.objectStoreName]).objectStore(this.objectStoreName).openCursor()
 b.onsuccess=function(b){var c=b.target.result
 if(c){var d=c.value.url,e=c.value.img
-a(d,e,null),c["continue"]()}else a(null,null,"end")}.bind(this),b.onerror=function(b){a(null,null,b)}}else a(null,null,"no db")},this.usedSpace=function(a){if(null!==this._db){var b={sizeBytes:0,tileCount:0},c=this._db.transaction([this.objectStoreName]).objectStore(this.objectStoreName).openCursor()
+d=O.esri.Tiles.LZString.decompress(d),e=O.esri.Tiles.Base64String.decompress(e),a(d,e,null),c["continue"]()}else a(null,null,"end")}.bind(this),b.onerror=function(b){a(null,null,b)}}else a(null,null,"no db")},this.usedSpace=function(a){if(null!==this._db){var b={sizeBytes:0,tileCount:0},c=this._db.transaction([this.objectStoreName]).objectStore(this.objectStoreName).openCursor()
 c.onsuccess=function(c){var d=c.target.result
 if(d){var e=d.value,f=JSON.stringify(e)
 b.sizeBytes+=this._stringBytes(f),b.tileCount+=1,d["continue"]()}else a(b,null)}.bind(this),c.onerror=function(b){a(null,b)}}else a(null,null)},this._stringBytes=function(a){return a.length},this.init=function(a){var b=indexedDB.open(this.dbName,4)
diff --git a/dist/offline-tiles-advanced-src.js b/dist/offline-tiles-advanced-src.js
index f9bcd488..514ae1a4 100644
--- a/dist/offline-tiles-advanced-src.js
+++ b/dist/offline-tiles-advanced-src.js
@@ -1,4 +1,4 @@
-/*! esri-offline-maps - v3.4.0 - 2016-09-13
+/*! esri-offline-maps - v3.5.0 - 2016-09-15
 *   Copyright (c) 2016 Environmental Systems Research Institute, Inc.
 *   Apache License*/
 define([
@@ -954,6 +954,501 @@ O.esri.Tiles.Base64String = {
 
 /*jslint bitwise: false */
 
+// Copyright (c) 2013 Pieroxy <pieroxy@pieroxy.net>
+// This work is free. You can redistribute it and/or modify it
+// under the terms of the WTFPL, Version 2
+// For more information see LICENSE.txt or http://www.wtfpl.net/
+//
+// For more information, the home page:
+// http://pieroxy.net/blog/pages/lz-string/testing.html
+//
+// LZ-based compression algorithm, version 1.4.4
+O.esri.Tiles.LZString = (function() {
+
+// private property
+    var f = String.fromCharCode;
+    var keyStrBase64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
+    var keyStrUriSafe = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+-$";
+    var baseReverseDic = {};
+
+    function getBaseValue(alphabet, character) {
+        if (!baseReverseDic[alphabet]) {
+            baseReverseDic[alphabet] = {};
+            for (var i=0 ; i<alphabet.length ; i++) {
+                baseReverseDic[alphabet][alphabet.charAt(i)] = i;
+            }
+        }
+        return baseReverseDic[alphabet][character];
+    }
+
+    var LZString = {
+        compressToBase64 : function (input) {
+            if (input == null) return "";
+            var res = LZString._compress(input, 6, function(a){return keyStrBase64.charAt(a);});
+            switch (res.length % 4) { // To produce valid Base64
+                default: // When could this happen ?
+                case 0 : return res;
+                case 1 : return res+"===";
+                case 2 : return res+"==";
+                case 3 : return res+"=";
+            }
+        },
+
+        decompressFromBase64 : function (input) {
+            if (input == null) return "";
+            if (input == "") return null;
+            return LZString._decompress(input.length, 32, function(index) { return getBaseValue(keyStrBase64, input.charAt(index)); });
+        },
+
+        compressToUTF16 : function (input) {
+            if (input == null) return "";
+            return LZString._compress(input, 15, function(a){return f(a+32);}) + " ";
+        },
+
+        decompressFromUTF16: function (compressed) {
+            if (compressed == null) return "";
+            if (compressed == "") return null;
+            return LZString._decompress(compressed.length, 16384, function(index) { return compressed.charCodeAt(index) - 32; });
+        },
+
+        //compress into uint8array (UCS-2 big endian format)
+        compressToUint8Array: function (uncompressed) {
+            var compressed = LZString.compress(uncompressed);
+            var buf=new Uint8Array(compressed.length*2); // 2 bytes per character
+
+            for (var i=0, TotalLen=compressed.length; i<TotalLen; i++) {
+                var current_value = compressed.charCodeAt(i);
+                buf[i*2] = current_value >>> 8;
+                buf[i*2+1] = current_value % 256;
+            }
+            return buf;
+        },
+
+        //decompress from uint8array (UCS-2 big endian format)
+        decompressFromUint8Array:function (compressed) {
+            if (compressed===null || compressed===undefined){
+                return LZString.decompress(compressed);
+            } else {
+                var buf=new Array(compressed.length/2); // 2 bytes per character
+                for (var i=0, TotalLen=buf.length; i<TotalLen; i++) {
+                    buf[i]=compressed[i*2]*256+compressed[i*2+1];
+                }
+
+                var result = [];
+                buf.forEach(function (c) {
+                    result.push(f(c));
+                });
+                return LZString.decompress(result.join(''));
+
+            }
+
+        },
+
+
+        //compress into a string that is already URI encoded
+        compressToEncodedURIComponent: function (input) {
+            if (input == null) return "";
+            return LZString._compress(input, 6, function(a){return keyStrUriSafe.charAt(a);});
+        },
+
+        //decompress from an output of compressToEncodedURIComponent
+        decompressFromEncodedURIComponent:function (input) {
+            if (input == null) return "";
+            if (input == "") return null;
+            input = input.replace(/ /g, "+");
+            return LZString._decompress(input.length, 32, function(index) { return getBaseValue(keyStrUriSafe, input.charAt(index)); });
+        },
+
+        compress: function (uncompressed) {
+            return LZString._compress(uncompressed, 16, function(a){return f(a);});
+        },
+        _compress: function (uncompressed, bitsPerChar, getCharFromInt) {
+            if (uncompressed == null) return "";
+            var i, value,
+                context_dictionary= {},
+                context_dictionaryToCreate= {},
+                context_c="",
+                context_wc="",
+                context_w="",
+                context_enlargeIn= 2, // Compensate for the first entry which should not count
+                context_dictSize= 3,
+                context_numBits= 2,
+                context_data=[],
+                context_data_val=0,
+                context_data_position=0,
+                ii;
+
+            for (ii = 0; ii < uncompressed.length; ii += 1) {
+                context_c = uncompressed.charAt(ii);
+                if (!Object.prototype.hasOwnProperty.call(context_dictionary,context_c)) {
+                    context_dictionary[context_c] = context_dictSize++;
+                    context_dictionaryToCreate[context_c] = true;
+                }
+
+                context_wc = context_w + context_c;
+                if (Object.prototype.hasOwnProperty.call(context_dictionary,context_wc)) {
+                    context_w = context_wc;
+                } else {
+                    if (Object.prototype.hasOwnProperty.call(context_dictionaryToCreate,context_w)) {
+                        if (context_w.charCodeAt(0)<256) {
+                            for (i=0 ; i<context_numBits ; i++) {
+                                context_data_val = (context_data_val << 1);
+                                if (context_data_position == bitsPerChar-1) {
+                                    context_data_position = 0;
+                                    context_data.push(getCharFromInt(context_data_val));
+                                    context_data_val = 0;
+                                } else {
+                                    context_data_position++;
+                                }
+                            }
+                            value = context_w.charCodeAt(0);
+                            for (i=0 ; i<8 ; i++) {
+                                context_data_val = (context_data_val << 1) | (value&1);
+                                if (context_data_position == bitsPerChar-1) {
+                                    context_data_position = 0;
+                                    context_data.push(getCharFromInt(context_data_val));
+                                    context_data_val = 0;
+                                } else {
+                                    context_data_position++;
+                                }
+                                value = value >> 1;
+                            }
+                        } else {
+                            value = 1;
+                            for (i=0 ; i<context_numBits ; i++) {
+                                context_data_val = (context_data_val << 1) | value;
+                                if (context_data_position ==bitsPerChar-1) {
+                                    context_data_position = 0;
+                                    context_data.push(getCharFromInt(context_data_val));
+                                    context_data_val = 0;
+                                } else {
+                                    context_data_position++;
+                                }
+                                value = 0;
+                            }
+                            value = context_w.charCodeAt(0);
+                            for (i=0 ; i<16 ; i++) {
+                                context_data_val = (context_data_val << 1) | (value&1);
+                                if (context_data_position == bitsPerChar-1) {
+                                    context_data_position = 0;
+                                    context_data.push(getCharFromInt(context_data_val));
+                                    context_data_val = 0;
+                                } else {
+                                    context_data_position++;
+                                }
+                                value = value >> 1;
+                            }
+                        }
+                        context_enlargeIn--;
+                        if (context_enlargeIn == 0) {
+                            context_enlargeIn = Math.pow(2, context_numBits);
+                            context_numBits++;
+                        }
+                        delete context_dictionaryToCreate[context_w];
+                    } else {
+                        value = context_dictionary[context_w];
+                        for (i=0 ; i<context_numBits ; i++) {
+                            context_data_val = (context_data_val << 1) | (value&1);
+                            if (context_data_position == bitsPerChar-1) {
+                                context_data_position = 0;
+                                context_data.push(getCharFromInt(context_data_val));
+                                context_data_val = 0;
+                            } else {
+                                context_data_position++;
+                            }
+                            value = value >> 1;
+                        }
+
+
+                    }
+                    context_enlargeIn--;
+                    if (context_enlargeIn == 0) {
+                        context_enlargeIn = Math.pow(2, context_numBits);
+                        context_numBits++;
+                    }
+                    // Add wc to the dictionary.
+                    context_dictionary[context_wc] = context_dictSize++;
+                    context_w = String(context_c);
+                }
+            }
+
+            // Output the code for w.
+            if (context_w !== "") {
+                if (Object.prototype.hasOwnProperty.call(context_dictionaryToCreate,context_w)) {
+                    if (context_w.charCodeAt(0)<256) {
+                        for (i=0 ; i<context_numBits ; i++) {
+                            context_data_val = (context_data_val << 1);
+                            if (context_data_position == bitsPerChar-1) {
+                                context_data_position = 0;
+                                context_data.push(getCharFromInt(context_data_val));
+                                context_data_val = 0;
+                            } else {
+                                context_data_position++;
+                            }
+                        }
+                        value = context_w.charCodeAt(0);
+                        for (i=0 ; i<8 ; i++) {
+                            context_data_val = (context_data_val << 1) | (value&1);
+                            if (context_data_position == bitsPerChar-1) {
+                                context_data_position = 0;
+                                context_data.push(getCharFromInt(context_data_val));
+                                context_data_val = 0;
+                            } else {
+                                context_data_position++;
+                            }
+                            value = value >> 1;
+                        }
+                    } else {
+                        value = 1;
+                        for (i=0 ; i<context_numBits ; i++) {
+                            context_data_val = (context_data_val << 1) | value;
+                            if (context_data_position == bitsPerChar-1) {
+                                context_data_position = 0;
+                                context_data.push(getCharFromInt(context_data_val));
+                                context_data_val = 0;
+                            } else {
+                                context_data_position++;
+                            }
+                            value = 0;
+                        }
+                        value = context_w.charCodeAt(0);
+                        for (i=0 ; i<16 ; i++) {
+                            context_data_val = (context_data_val << 1) | (value&1);
+                            if (context_data_position == bitsPerChar-1) {
+                                context_data_position = 0;
+                                context_data.push(getCharFromInt(context_data_val));
+                                context_data_val = 0;
+                            } else {
+                                context_data_position++;
+                            }
+                            value = value >> 1;
+                        }
+                    }
+                    context_enlargeIn--;
+                    if (context_enlargeIn == 0) {
+                        context_enlargeIn = Math.pow(2, context_numBits);
+                        context_numBits++;
+                    }
+                    delete context_dictionaryToCreate[context_w];
+                } else {
+                    value = context_dictionary[context_w];
+                    for (i=0 ; i<context_numBits ; i++) {
+                        context_data_val = (context_data_val << 1) | (value&1);
+                        if (context_data_position == bitsPerChar-1) {
+                            context_data_position = 0;
+                            context_data.push(getCharFromInt(context_data_val));
+                            context_data_val = 0;
+                        } else {
+                            context_data_position++;
+                        }
+                        value = value >> 1;
+                    }
+
+
+                }
+                context_enlargeIn--;
+                if (context_enlargeIn == 0) {
+                    context_enlargeIn = Math.pow(2, context_numBits);
+                    context_numBits++;
+                }
+            }
+
+            // Mark the end of the stream
+            value = 2;
+            for (i=0 ; i<context_numBits ; i++) {
+                context_data_val = (context_data_val << 1) | (value&1);
+                if (context_data_position == bitsPerChar-1) {
+                    context_data_position = 0;
+                    context_data.push(getCharFromInt(context_data_val));
+                    context_data_val = 0;
+                } else {
+                    context_data_position++;
+                }
+                value = value >> 1;
+            }
+
+            // Flush the last char
+            while (true) {
+                context_data_val = (context_data_val << 1);
+                if (context_data_position == bitsPerChar-1) {
+                    context_data.push(getCharFromInt(context_data_val));
+                    break;
+                }
+                else context_data_position++;
+            }
+            return context_data.join('');
+        },
+
+        decompress: function (compressed) {
+            if (compressed == null) return "";
+            if (compressed == "") return null;
+            return LZString._decompress(compressed.length, 32768, function(index) { return compressed.charCodeAt(index); });
+        },
+
+        _decompress: function (length, resetValue, getNextValue) {
+            var dictionary = [],
+                next,
+                enlargeIn = 4,
+                dictSize = 4,
+                numBits = 3,
+                entry = "",
+                result = [],
+                i,
+                w,
+                bits, resb, maxpower, power,
+                c,
+                data = {val:getNextValue(0), position:resetValue, index:1};
+
+            for (i = 0; i < 3; i += 1) {
+                dictionary[i] = i;
+            }
+
+            bits = 0;
+            maxpower = Math.pow(2,2);
+            power=1;
+            while (power!=maxpower) {
+                resb = data.val & data.position;
+                data.position >>= 1;
+                if (data.position == 0) {
+                    data.position = resetValue;
+                    data.val = getNextValue(data.index++);
+                }
+                bits |= (resb>0 ? 1 : 0) * power;
+                power <<= 1;
+            }
+
+            switch (next = bits) {
+                case 0:
+                    bits = 0;
+                    maxpower = Math.pow(2,8);
+                    power=1;
+                    while (power!=maxpower) {
+                        resb = data.val & data.position;
+                        data.position >>= 1;
+                        if (data.position == 0) {
+                            data.position = resetValue;
+                            data.val = getNextValue(data.index++);
+                        }
+                        bits |= (resb>0 ? 1 : 0) * power;
+                        power <<= 1;
+                    }
+                    c = f(bits);
+                    break;
+                case 1:
+                    bits = 0;
+                    maxpower = Math.pow(2,16);
+                    power=1;
+                    while (power!=maxpower) {
+                        resb = data.val & data.position;
+                        data.position >>= 1;
+                        if (data.position == 0) {
+                            data.position = resetValue;
+                            data.val = getNextValue(data.index++);
+                        }
+                        bits |= (resb>0 ? 1 : 0) * power;
+                        power <<= 1;
+                    }
+                    c = f(bits);
+                    break;
+                case 2:
+                    return "";
+            }
+            dictionary[3] = c;
+            w = c;
+            result.push(c);
+            while (true) {
+                if (data.index > length) {
+                    return "";
+                }
+
+                bits = 0;
+                maxpower = Math.pow(2,numBits);
+                power=1;
+                while (power!=maxpower) {
+                    resb = data.val & data.position;
+                    data.position >>= 1;
+                    if (data.position == 0) {
+                        data.position = resetValue;
+                        data.val = getNextValue(data.index++);
+                    }
+                    bits |= (resb>0 ? 1 : 0) * power;
+                    power <<= 1;
+                }
+
+                switch (c = bits) {
+                    case 0:
+                        bits = 0;
+                        maxpower = Math.pow(2,8);
+                        power=1;
+                        while (power!=maxpower) {
+                            resb = data.val & data.position;
+                            data.position >>= 1;
+                            if (data.position == 0) {
+                                data.position = resetValue;
+                                data.val = getNextValue(data.index++);
+                            }
+                            bits |= (resb>0 ? 1 : 0) * power;
+                            power <<= 1;
+                        }
+
+                        dictionary[dictSize++] = f(bits);
+                        c = dictSize-1;
+                        enlargeIn--;
+                        break;
+                    case 1:
+                        bits = 0;
+                        maxpower = Math.pow(2,16);
+                        power=1;
+                        while (power!=maxpower) {
+                            resb = data.val & data.position;
+                            data.position >>= 1;
+                            if (data.position == 0) {
+                                data.position = resetValue;
+                                data.val = getNextValue(data.index++);
+                            }
+                            bits |= (resb>0 ? 1 : 0) * power;
+                            power <<= 1;
+                        }
+                        dictionary[dictSize++] = f(bits);
+                        c = dictSize-1;
+                        enlargeIn--;
+                        break;
+                    case 2:
+                        return result.join('');
+                }
+
+                if (enlargeIn == 0) {
+                    enlargeIn = Math.pow(2, numBits);
+                    numBits++;
+                }
+
+                if (dictionary[c]) {
+                    entry = dictionary[c];
+                } else {
+                    if (c === dictSize) {
+                        entry = w + w.charAt(0);
+                    } else {
+                        return null;
+                    }
+                }
+                result.push(entry);
+
+                // Add w+entry[0] to the dictionary.
+                dictionary[dictSize++] = w + entry.charAt(0);
+                enlargeIn--;
+
+                w = entry;
+
+                if (enlargeIn == 0) {
+                    enlargeIn = Math.pow(2, numBits);
+                    numBits++;
+                }
+
+            }
+        }
+    };
+    return LZString;
+})();
 /* FileSaver.js
  * A saveAs() FileSaver implementation.
  * 2013-10-21
@@ -1641,6 +2136,7 @@ O.esri.Tiles.TilesStore = function(){
             };
 
             var objectStore = transaction.objectStore(this.objectStoreName);
+            urlDataPair.url = O.esri.Tiles.LZString.compress(urlDataPair.url);
             urlDataPair.img = O.esri.Tiles.Base64String.compress(urlDataPair.img);
             var request = objectStore.put(urlDataPair);
             request.onsuccess = function()
@@ -1665,7 +2161,7 @@ O.esri.Tiles.TilesStore = function(){
         if(this._db !== null)
         {
             var objectStore = this._db.transaction([this.objectStoreName]).objectStore(this.objectStoreName);
-            var request = objectStore.get(url);
+            var request = objectStore.get(O.esri.Tiles.LZString.compress(url));
             request.onsuccess = function(event)
             {
                 var result = event.target.result;
@@ -1675,6 +2171,7 @@ O.esri.Tiles.TilesStore = function(){
                 }
                 else
                 {
+                    result.url = O.esri.Tiles.LZString.decompress(result.url);
                     result.img = O.esri.Tiles.Base64String.decompress(result.img);
                     callback(true,result);
                 }
@@ -1757,6 +2254,8 @@ O.esri.Tiles.TilesStore = function(){
                 if(cursor){
                     var url = cursor.value.url;
                     var img = cursor.value.img;
+                    url = O.esri.Tiles.LZString.decompress(url);
+                    img = O.esri.Tiles.Base64String.decompress(img);
                     callback(url,img,null);
                     cursor.continue();
                 }
diff --git a/dist/offline-tiles-basic-min.js b/dist/offline-tiles-basic-min.js
index 8201b180..abfc7a1a 100644
--- a/dist/offline-tiles-basic-min.js
+++ b/dist/offline-tiles-basic-min.js
@@ -81,7 +81,48 @@ break
 case 15:d.push(String.fromCharCode(b|c)),e=0}f++}return this.decompress(d.join(""))},_keyStr:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",decompress:function(a){for(var b,c,d,e,f,g,h,i=[],j=1,k=a.charCodeAt(0)>>8;j<2*a.length&&(j<2*a.length-1||0===k);)j%2===0?(b=a.charCodeAt(j/2)>>8,c=255&a.charCodeAt(j/2),d=j/2+1<a.length?a.charCodeAt(j/2+1)>>8:NaN):(b=255&a.charCodeAt((j-1)/2),(j+1)/2<a.length?(c=a.charCodeAt((j+1)/2)>>8,d=255&a.charCodeAt((j+1)/2)):c=d=NaN),j+=3,e=b>>2,f=(3&b)<<4|c>>4,g=(15&c)<<2|d>>6,h=63&d,isNaN(c)||j==2*a.length+1&&k?g=h=64:(isNaN(d)||j==2*a.length&&k)&&(h=64),i.push(this._keyStr.charAt(e)),i.push(this._keyStr.charAt(f)),i.push(this._keyStr.charAt(g)),i.push(this._keyStr.charAt(h))
 return i.join("")},compress:function(a){var b,c,d,e,f,g,h,i,j=[],k=1,l=0,m=!1
 for(a=a.replace(/[^A-Za-z0-9\+\/\=]/g,"");l<a.length;)f=this._keyStr.indexOf(a.charAt(l++)),g=this._keyStr.indexOf(a.charAt(l++)),h=this._keyStr.indexOf(a.charAt(l++)),i=this._keyStr.indexOf(a.charAt(l++)),c=f<<2|g>>4,d=(15&g)<<4|h>>2,e=(3&h)<<6|i,k%2===0?(b=c<<8,m=!0,64!=h&&(j.push(String.fromCharCode(b|d)),m=!1),64!=i&&(b=e<<8,m=!0)):(j.push(String.fromCharCode(b|c)),m=!1,64!=h&&(b=d<<8,m=!0),64!=i&&(j.push(String.fromCharCode(b|e)),m=!1)),k+=3
-return m?(j.push(String.fromCharCode(b)),j=j.join(""),j=String.fromCharCode(256|j.charCodeAt(0))+j.substring(1)):j=j.join(""),j}},O.esri.Tiles.saveAs=function(a){"use strict"
+return m?(j.push(String.fromCharCode(b)),j=j.join(""),j=String.fromCharCode(256|j.charCodeAt(0))+j.substring(1)):j=j.join(""),j}},O.esri.Tiles.LZString=function(){function a(a,b){if(!e[a]){e[a]={}
+for(var c=0;c<a.length;c++)e[a][a.charAt(c)]=c}return e[a][b]}var b=String.fromCharCode,c="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",d="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+-$",e={},f={compressToBase64:function(a){if(null==a)return""
+var b=f._compress(a,6,function(a){return c.charAt(a)})
+switch(b.length%4){default:case 0:return b
+case 1:return b+"==="
+case 2:return b+"=="
+case 3:return b+"="}},decompressFromBase64:function(b){return null==b?"":""==b?null:f._decompress(b.length,32,function(d){return a(c,b.charAt(d))})},compressToUTF16:function(a){return null==a?"":f._compress(a,15,function(a){return b(a+32)})+" "},decompressFromUTF16:function(a){return null==a?"":""==a?null:f._decompress(a.length,16384,function(b){return a.charCodeAt(b)-32})},compressToUint8Array:function(a){for(var b=f.compress(a),c=new Uint8Array(2*b.length),d=0,e=b.length;e>d;d++){var g=b.charCodeAt(d)
+c[2*d]=g>>>8,c[2*d+1]=g%256}return c},decompressFromUint8Array:function(a){if(null===a||void 0===a)return f.decompress(a)
+for(var c=new Array(a.length/2),d=0,e=c.length;e>d;d++)c[d]=256*a[2*d]+a[2*d+1]
+var g=[]
+return c.forEach(function(a){g.push(b(a))}),f.decompress(g.join(""))},compressToEncodedURIComponent:function(a){return null==a?"":f._compress(a,6,function(a){return d.charAt(a)})},decompressFromEncodedURIComponent:function(b){return null==b?"":""==b?null:(b=b.replace(/ /g,"+"),f._decompress(b.length,32,function(c){return a(d,b.charAt(c))}))},compress:function(a){return f._compress(a,16,function(a){return b(a)})},_compress:function(a,b,c){if(null==a)return""
+var d,e,f,g={},h={},i="",j="",k="",l=2,m=3,n=2,o=[],p=0,q=0
+for(f=0;f<a.length;f+=1)if(i=a.charAt(f),Object.prototype.hasOwnProperty.call(g,i)||(g[i]=m++,h[i]=!0),j=k+i,Object.prototype.hasOwnProperty.call(g,j))k=j
+else{if(Object.prototype.hasOwnProperty.call(h,k)){if(k.charCodeAt(0)<256){for(d=0;n>d;d++)p<<=1,q==b-1?(q=0,o.push(c(p)),p=0):q++
+for(e=k.charCodeAt(0),d=0;8>d;d++)p=p<<1|1&e,q==b-1?(q=0,o.push(c(p)),p=0):q++,e>>=1}else{for(e=1,d=0;n>d;d++)p=p<<1|e,q==b-1?(q=0,o.push(c(p)),p=0):q++,e=0
+for(e=k.charCodeAt(0),d=0;16>d;d++)p=p<<1|1&e,q==b-1?(q=0,o.push(c(p)),p=0):q++,e>>=1}l--,0==l&&(l=Math.pow(2,n),n++),delete h[k]}else for(e=g[k],d=0;n>d;d++)p=p<<1|1&e,q==b-1?(q=0,o.push(c(p)),p=0):q++,e>>=1
+l--,0==l&&(l=Math.pow(2,n),n++),g[j]=m++,k=String(i)}if(""!==k){if(Object.prototype.hasOwnProperty.call(h,k)){if(k.charCodeAt(0)<256){for(d=0;n>d;d++)p<<=1,q==b-1?(q=0,o.push(c(p)),p=0):q++
+for(e=k.charCodeAt(0),d=0;8>d;d++)p=p<<1|1&e,q==b-1?(q=0,o.push(c(p)),p=0):q++,e>>=1}else{for(e=1,d=0;n>d;d++)p=p<<1|e,q==b-1?(q=0,o.push(c(p)),p=0):q++,e=0
+for(e=k.charCodeAt(0),d=0;16>d;d++)p=p<<1|1&e,q==b-1?(q=0,o.push(c(p)),p=0):q++,e>>=1}l--,0==l&&(l=Math.pow(2,n),n++),delete h[k]}else for(e=g[k],d=0;n>d;d++)p=p<<1|1&e,q==b-1?(q=0,o.push(c(p)),p=0):q++,e>>=1
+l--,0==l&&(l=Math.pow(2,n),n++)}for(e=2,d=0;n>d;d++)p=p<<1|1&e,q==b-1?(q=0,o.push(c(p)),p=0):q++,e>>=1
+for(;;){if(p<<=1,q==b-1){o.push(c(p))
+break}q++}return o.join("")},decompress:function(a){return null==a?"":""==a?null:f._decompress(a.length,32768,function(b){return a.charCodeAt(b)})},_decompress:function(a,c,d){var e,f,g,h,i,j,k,l,m=[],n=4,o=4,p=3,q="",r=[],s={val:d(0),position:c,index:1}
+for(f=0;3>f;f+=1)m[f]=f
+for(h=0,j=Math.pow(2,2),k=1;k!=j;)i=s.val&s.position,s.position>>=1,0==s.position&&(s.position=c,s.val=d(s.index++)),h|=(i>0?1:0)*k,k<<=1
+switch(e=h){case 0:for(h=0,j=Math.pow(2,8),k=1;k!=j;)i=s.val&s.position,s.position>>=1,0==s.position&&(s.position=c,s.val=d(s.index++)),h|=(i>0?1:0)*k,k<<=1
+l=b(h)
+break
+case 1:for(h=0,j=Math.pow(2,16),k=1;k!=j;)i=s.val&s.position,s.position>>=1,0==s.position&&(s.position=c,s.val=d(s.index++)),h|=(i>0?1:0)*k,k<<=1
+l=b(h)
+break
+case 2:return""}for(m[3]=l,g=l,r.push(l);;){if(s.index>a)return""
+for(h=0,j=Math.pow(2,p),k=1;k!=j;)i=s.val&s.position,s.position>>=1,0==s.position&&(s.position=c,s.val=d(s.index++)),h|=(i>0?1:0)*k,k<<=1
+switch(l=h){case 0:for(h=0,j=Math.pow(2,8),k=1;k!=j;)i=s.val&s.position,s.position>>=1,0==s.position&&(s.position=c,s.val=d(s.index++)),h|=(i>0?1:0)*k,k<<=1
+m[o++]=b(h),l=o-1,n--
+break
+case 1:for(h=0,j=Math.pow(2,16),k=1;k!=j;)i=s.val&s.position,s.position>>=1,0==s.position&&(s.position=c,s.val=d(s.index++)),h|=(i>0?1:0)*k,k<<=1
+m[o++]=b(h),l=o-1,n--
+break
+case 2:return r.join("")}if(0==n&&(n=Math.pow(2,p),p++),m[l])q=m[l]
+else{if(l!==o)return null
+q=g+g.charAt(0)}r.push(q),m[o++]=g+q.charAt(0),n--,g=q,0==n&&(n=Math.pow(2,p),p++)}}}
+return f}(),O.esri.Tiles.saveAs=function(a){"use strict"
 var b=a.document,c=function(){return a.URL||a.webkitURL||a},d=a.URL||a.webkitURL||a,e=b.createElementNS("http://www.w3.org/1999/xhtml","a"),f=!a.externalHost&&"download"in e,g=a.webkitRequestFileSystem,h=a.requestFileSystem||g||a.mozRequestFileSystem,i=function(b){(a.setImmediate||a.setTimeout)(function(){throw b},0)},j="application/octet-stream",k=0,l=[],m=function(){for(var a=l.length;a--;){var b=l[a]
 "string"==typeof b?d.revokeObjectURL(b):b.remove()}l.length=0},n=function(a,b,c){b=[].concat(b)
 for(var d=b.length;d--;){var e=a["on"+b[d]]
@@ -121,16 +162,16 @@ var k=new f(parseFloat(d.initialExtent.xmin),parseFloat(d.initialExtent.ymin),pa
 m.origin=n,m.lods=j,b({initExtent:k,fullExtent:l,tileInfo:m,resultObj:d})})}},O.esri.Tiles.TilesStore=function(){this._db=null,this.dbName="offline_tile_store",this.objectStoreName="tilepath",this.isSupported=function(){return!(!window.indexedDB&&!window.openDatabase)},this.store=function(a,b){try{var c=this._db.transaction([this.objectStoreName],"readwrite")
 c.oncomplete=function(){b(!0)},c.onerror=function(a){b(!1,a.target.error.message)}
 var d=c.objectStore(this.objectStoreName)
-a.img=O.esri.Tiles.Base64String.compress(a.img)
+a.url=O.esri.Tiles.LZString.compress(a.url),a.img=O.esri.Tiles.Base64String.compress(a.img)
 var e=d.put(a)
-e.onsuccess=function(){}}catch(f){b(!1,f.stack)}},this.retrieve=function(a,b){if(null!==this._db){var c=this._db.transaction([this.objectStoreName]).objectStore(this.objectStoreName),d=c.get(a)
+e.onsuccess=function(){}}catch(f){b(!1,f.stack)}},this.retrieve=function(a,b){if(null!==this._db){var c=this._db.transaction([this.objectStoreName]).objectStore(this.objectStoreName),d=c.get(O.esri.Tiles.LZString.compress(a))
 d.onsuccess=function(a){var c=a.target.result
-void 0===c?b(!1,"not found"):(c.img=O.esri.Tiles.Base64String.decompress(c.img),b(!0,c))},d.onerror=function(a){b(!1,a)}}},this.deleteAll=function(a){if(null!==this._db){var b=this._db.transaction([this.objectStoreName],"readwrite").objectStore(this.objectStoreName).clear()
+void 0===c?b(!1,"not found"):(c.url=O.esri.Tiles.LZString.decompress(c.url),c.img=O.esri.Tiles.Base64String.decompress(c.img),b(!0,c))},d.onerror=function(a){b(!1,a)}}},this.deleteAll=function(a){if(null!==this._db){var b=this._db.transaction([this.objectStoreName],"readwrite").objectStore(this.objectStoreName).clear()
 b.onsuccess=function(){a(!0)},b.onerror=function(b){a(!1,b)}}else a(!1,null)},this["delete"]=function(a,b){if(null!==this._db){var c=this._db.transaction([this.objectStoreName],"readwrite").objectStore(this.objectStoreName)["delete"](a)
 c.onsuccess=function(){b(!0)},c.onerror=function(a){b(!1,a)}}else b(!1,null)},this.getAllTiles=function(a){if(null!==this._db){var b=this._db.transaction([this.objectStoreName]).objectStore(this.objectStoreName).openCursor()
 b.onsuccess=function(b){var c=b.target.result
 if(c){var d=c.value.url,e=c.value.img
-a(d,e,null),c["continue"]()}else a(null,null,"end")}.bind(this),b.onerror=function(b){a(null,null,b)}}else a(null,null,"no db")},this.usedSpace=function(a){if(null!==this._db){var b={sizeBytes:0,tileCount:0},c=this._db.transaction([this.objectStoreName]).objectStore(this.objectStoreName).openCursor()
+d=O.esri.Tiles.LZString.decompress(d),e=O.esri.Tiles.Base64String.decompress(e),a(d,e,null),c["continue"]()}else a(null,null,"end")}.bind(this),b.onerror=function(b){a(null,null,b)}}else a(null,null,"no db")},this.usedSpace=function(a){if(null!==this._db){var b={sizeBytes:0,tileCount:0},c=this._db.transaction([this.objectStoreName]).objectStore(this.objectStoreName).openCursor()
 c.onsuccess=function(c){var d=c.target.result
 if(d){var e=d.value,f=JSON.stringify(e)
 b.sizeBytes+=this._stringBytes(f),b.tileCount+=1,d["continue"]()}else a(b,null)}.bind(this),c.onerror=function(b){a(null,b)}}else a(null,null)},this._stringBytes=function(a){return a.length},this.init=function(a){var b=indexedDB.open(this.dbName,4)
diff --git a/dist/offline-tiles-basic-src.js b/dist/offline-tiles-basic-src.js
index 5ba52b58..a02c2163 100644
--- a/dist/offline-tiles-basic-src.js
+++ b/dist/offline-tiles-basic-src.js
@@ -1,4 +1,4 @@
-/*! esri-offline-maps - v3.4.0 - 2016-09-13
+/*! esri-offline-maps - v3.5.0 - 2016-09-15
 *   Copyright (c) 2016 Environmental Systems Research Institute, Inc.
 *   Apache License*/
 define([
@@ -785,6 +785,501 @@ O.esri.Tiles.Base64String = {
 
 /*jslint bitwise: false */
 
+// Copyright (c) 2013 Pieroxy <pieroxy@pieroxy.net>
+// This work is free. You can redistribute it and/or modify it
+// under the terms of the WTFPL, Version 2
+// For more information see LICENSE.txt or http://www.wtfpl.net/
+//
+// For more information, the home page:
+// http://pieroxy.net/blog/pages/lz-string/testing.html
+//
+// LZ-based compression algorithm, version 1.4.4
+O.esri.Tiles.LZString = (function() {
+
+// private property
+    var f = String.fromCharCode;
+    var keyStrBase64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
+    var keyStrUriSafe = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+-$";
+    var baseReverseDic = {};
+
+    function getBaseValue(alphabet, character) {
+        if (!baseReverseDic[alphabet]) {
+            baseReverseDic[alphabet] = {};
+            for (var i=0 ; i<alphabet.length ; i++) {
+                baseReverseDic[alphabet][alphabet.charAt(i)] = i;
+            }
+        }
+        return baseReverseDic[alphabet][character];
+    }
+
+    var LZString = {
+        compressToBase64 : function (input) {
+            if (input == null) return "";
+            var res = LZString._compress(input, 6, function(a){return keyStrBase64.charAt(a);});
+            switch (res.length % 4) { // To produce valid Base64
+                default: // When could this happen ?
+                case 0 : return res;
+                case 1 : return res+"===";
+                case 2 : return res+"==";
+                case 3 : return res+"=";
+            }
+        },
+
+        decompressFromBase64 : function (input) {
+            if (input == null) return "";
+            if (input == "") return null;
+            return LZString._decompress(input.length, 32, function(index) { return getBaseValue(keyStrBase64, input.charAt(index)); });
+        },
+
+        compressToUTF16 : function (input) {
+            if (input == null) return "";
+            return LZString._compress(input, 15, function(a){return f(a+32);}) + " ";
+        },
+
+        decompressFromUTF16: function (compressed) {
+            if (compressed == null) return "";
+            if (compressed == "") return null;
+            return LZString._decompress(compressed.length, 16384, function(index) { return compressed.charCodeAt(index) - 32; });
+        },
+
+        //compress into uint8array (UCS-2 big endian format)
+        compressToUint8Array: function (uncompressed) {
+            var compressed = LZString.compress(uncompressed);
+            var buf=new Uint8Array(compressed.length*2); // 2 bytes per character
+
+            for (var i=0, TotalLen=compressed.length; i<TotalLen; i++) {
+                var current_value = compressed.charCodeAt(i);
+                buf[i*2] = current_value >>> 8;
+                buf[i*2+1] = current_value % 256;
+            }
+            return buf;
+        },
+
+        //decompress from uint8array (UCS-2 big endian format)
+        decompressFromUint8Array:function (compressed) {
+            if (compressed===null || compressed===undefined){
+                return LZString.decompress(compressed);
+            } else {
+                var buf=new Array(compressed.length/2); // 2 bytes per character
+                for (var i=0, TotalLen=buf.length; i<TotalLen; i++) {
+                    buf[i]=compressed[i*2]*256+compressed[i*2+1];
+                }
+
+                var result = [];
+                buf.forEach(function (c) {
+                    result.push(f(c));
+                });
+                return LZString.decompress(result.join(''));
+
+            }
+
+        },
+
+
+        //compress into a string that is already URI encoded
+        compressToEncodedURIComponent: function (input) {
+            if (input == null) return "";
+            return LZString._compress(input, 6, function(a){return keyStrUriSafe.charAt(a);});
+        },
+
+        //decompress from an output of compressToEncodedURIComponent
+        decompressFromEncodedURIComponent:function (input) {
+            if (input == null) return "";
+            if (input == "") return null;
+            input = input.replace(/ /g, "+");
+            return LZString._decompress(input.length, 32, function(index) { return getBaseValue(keyStrUriSafe, input.charAt(index)); });
+        },
+
+        compress: function (uncompressed) {
+            return LZString._compress(uncompressed, 16, function(a){return f(a);});
+        },
+        _compress: function (uncompressed, bitsPerChar, getCharFromInt) {
+            if (uncompressed == null) return "";
+            var i, value,
+                context_dictionary= {},
+                context_dictionaryToCreate= {},
+                context_c="",
+                context_wc="",
+                context_w="",
+                context_enlargeIn= 2, // Compensate for the first entry which should not count
+                context_dictSize= 3,
+                context_numBits= 2,
+                context_data=[],
+                context_data_val=0,
+                context_data_position=0,
+                ii;
+
+            for (ii = 0; ii < uncompressed.length; ii += 1) {
+                context_c = uncompressed.charAt(ii);
+                if (!Object.prototype.hasOwnProperty.call(context_dictionary,context_c)) {
+                    context_dictionary[context_c] = context_dictSize++;
+                    context_dictionaryToCreate[context_c] = true;
+                }
+
+                context_wc = context_w + context_c;
+                if (Object.prototype.hasOwnProperty.call(context_dictionary,context_wc)) {
+                    context_w = context_wc;
+                } else {
+                    if (Object.prototype.hasOwnProperty.call(context_dictionaryToCreate,context_w)) {
+                        if (context_w.charCodeAt(0)<256) {
+                            for (i=0 ; i<context_numBits ; i++) {
+                                context_data_val = (context_data_val << 1);
+                                if (context_data_position == bitsPerChar-1) {
+                                    context_data_position = 0;
+                                    context_data.push(getCharFromInt(context_data_val));
+                                    context_data_val = 0;
+                                } else {
+                                    context_data_position++;
+                                }
+                            }
+                            value = context_w.charCodeAt(0);
+                            for (i=0 ; i<8 ; i++) {
+                                context_data_val = (context_data_val << 1) | (value&1);
+                                if (context_data_position == bitsPerChar-1) {
+                                    context_data_position = 0;
+                                    context_data.push(getCharFromInt(context_data_val));
+                                    context_data_val = 0;
+                                } else {
+                                    context_data_position++;
+                                }
+                                value = value >> 1;
+                            }
+                        } else {
+                            value = 1;
+                            for (i=0 ; i<context_numBits ; i++) {
+                                context_data_val = (context_data_val << 1) | value;
+                                if (context_data_position ==bitsPerChar-1) {
+                                    context_data_position = 0;
+                                    context_data.push(getCharFromInt(context_data_val));
+                                    context_data_val = 0;
+                                } else {
+                                    context_data_position++;
+                                }
+                                value = 0;
+                            }
+                            value = context_w.charCodeAt(0);
+                            for (i=0 ; i<16 ; i++) {
+                                context_data_val = (context_data_val << 1) | (value&1);
+                                if (context_data_position == bitsPerChar-1) {
+                                    context_data_position = 0;
+                                    context_data.push(getCharFromInt(context_data_val));
+                                    context_data_val = 0;
+                                } else {
+                                    context_data_position++;
+                                }
+                                value = value >> 1;
+                            }
+                        }
+                        context_enlargeIn--;
+                        if (context_enlargeIn == 0) {
+                            context_enlargeIn = Math.pow(2, context_numBits);
+                            context_numBits++;
+                        }
+                        delete context_dictionaryToCreate[context_w];
+                    } else {
+                        value = context_dictionary[context_w];
+                        for (i=0 ; i<context_numBits ; i++) {
+                            context_data_val = (context_data_val << 1) | (value&1);
+                            if (context_data_position == bitsPerChar-1) {
+                                context_data_position = 0;
+                                context_data.push(getCharFromInt(context_data_val));
+                                context_data_val = 0;
+                            } else {
+                                context_data_position++;
+                            }
+                            value = value >> 1;
+                        }
+
+
+                    }
+                    context_enlargeIn--;
+                    if (context_enlargeIn == 0) {
+                        context_enlargeIn = Math.pow(2, context_numBits);
+                        context_numBits++;
+                    }
+                    // Add wc to the dictionary.
+                    context_dictionary[context_wc] = context_dictSize++;
+                    context_w = String(context_c);
+                }
+            }
+
+            // Output the code for w.
+            if (context_w !== "") {
+                if (Object.prototype.hasOwnProperty.call(context_dictionaryToCreate,context_w)) {
+                    if (context_w.charCodeAt(0)<256) {
+                        for (i=0 ; i<context_numBits ; i++) {
+                            context_data_val = (context_data_val << 1);
+                            if (context_data_position == bitsPerChar-1) {
+                                context_data_position = 0;
+                                context_data.push(getCharFromInt(context_data_val));
+                                context_data_val = 0;
+                            } else {
+                                context_data_position++;
+                            }
+                        }
+                        value = context_w.charCodeAt(0);
+                        for (i=0 ; i<8 ; i++) {
+                            context_data_val = (context_data_val << 1) | (value&1);
+                            if (context_data_position == bitsPerChar-1) {
+                                context_data_position = 0;
+                                context_data.push(getCharFromInt(context_data_val));
+                                context_data_val = 0;
+                            } else {
+                                context_data_position++;
+                            }
+                            value = value >> 1;
+                        }
+                    } else {
+                        value = 1;
+                        for (i=0 ; i<context_numBits ; i++) {
+                            context_data_val = (context_data_val << 1) | value;
+                            if (context_data_position == bitsPerChar-1) {
+                                context_data_position = 0;
+                                context_data.push(getCharFromInt(context_data_val));
+                                context_data_val = 0;
+                            } else {
+                                context_data_position++;
+                            }
+                            value = 0;
+                        }
+                        value = context_w.charCodeAt(0);
+                        for (i=0 ; i<16 ; i++) {
+                            context_data_val = (context_data_val << 1) | (value&1);
+                            if (context_data_position == bitsPerChar-1) {
+                                context_data_position = 0;
+                                context_data.push(getCharFromInt(context_data_val));
+                                context_data_val = 0;
+                            } else {
+                                context_data_position++;
+                            }
+                            value = value >> 1;
+                        }
+                    }
+                    context_enlargeIn--;
+                    if (context_enlargeIn == 0) {
+                        context_enlargeIn = Math.pow(2, context_numBits);
+                        context_numBits++;
+                    }
+                    delete context_dictionaryToCreate[context_w];
+                } else {
+                    value = context_dictionary[context_w];
+                    for (i=0 ; i<context_numBits ; i++) {
+                        context_data_val = (context_data_val << 1) | (value&1);
+                        if (context_data_position == bitsPerChar-1) {
+                            context_data_position = 0;
+                            context_data.push(getCharFromInt(context_data_val));
+                            context_data_val = 0;
+                        } else {
+                            context_data_position++;
+                        }
+                        value = value >> 1;
+                    }
+
+
+                }
+                context_enlargeIn--;
+                if (context_enlargeIn == 0) {
+                    context_enlargeIn = Math.pow(2, context_numBits);
+                    context_numBits++;
+                }
+            }
+
+            // Mark the end of the stream
+            value = 2;
+            for (i=0 ; i<context_numBits ; i++) {
+                context_data_val = (context_data_val << 1) | (value&1);
+                if (context_data_position == bitsPerChar-1) {
+                    context_data_position = 0;
+                    context_data.push(getCharFromInt(context_data_val));
+                    context_data_val = 0;
+                } else {
+                    context_data_position++;
+                }
+                value = value >> 1;
+            }
+
+            // Flush the last char
+            while (true) {
+                context_data_val = (context_data_val << 1);
+                if (context_data_position == bitsPerChar-1) {
+                    context_data.push(getCharFromInt(context_data_val));
+                    break;
+                }
+                else context_data_position++;
+            }
+            return context_data.join('');
+        },
+
+        decompress: function (compressed) {
+            if (compressed == null) return "";
+            if (compressed == "") return null;
+            return LZString._decompress(compressed.length, 32768, function(index) { return compressed.charCodeAt(index); });
+        },
+
+        _decompress: function (length, resetValue, getNextValue) {
+            var dictionary = [],
+                next,
+                enlargeIn = 4,
+                dictSize = 4,
+                numBits = 3,
+                entry = "",
+                result = [],
+                i,
+                w,
+                bits, resb, maxpower, power,
+                c,
+                data = {val:getNextValue(0), position:resetValue, index:1};
+
+            for (i = 0; i < 3; i += 1) {
+                dictionary[i] = i;
+            }
+
+            bits = 0;
+            maxpower = Math.pow(2,2);
+            power=1;
+            while (power!=maxpower) {
+                resb = data.val & data.position;
+                data.position >>= 1;
+                if (data.position == 0) {
+                    data.position = resetValue;
+                    data.val = getNextValue(data.index++);
+                }
+                bits |= (resb>0 ? 1 : 0) * power;
+                power <<= 1;
+            }
+
+            switch (next = bits) {
+                case 0:
+                    bits = 0;
+                    maxpower = Math.pow(2,8);
+                    power=1;
+                    while (power!=maxpower) {
+                        resb = data.val & data.position;
+                        data.position >>= 1;
+                        if (data.position == 0) {
+                            data.position = resetValue;
+                            data.val = getNextValue(data.index++);
+                        }
+                        bits |= (resb>0 ? 1 : 0) * power;
+                        power <<= 1;
+                    }
+                    c = f(bits);
+                    break;
+                case 1:
+                    bits = 0;
+                    maxpower = Math.pow(2,16);
+                    power=1;
+                    while (power!=maxpower) {
+                        resb = data.val & data.position;
+                        data.position >>= 1;
+                        if (data.position == 0) {
+                            data.position = resetValue;
+                            data.val = getNextValue(data.index++);
+                        }
+                        bits |= (resb>0 ? 1 : 0) * power;
+                        power <<= 1;
+                    }
+                    c = f(bits);
+                    break;
+                case 2:
+                    return "";
+            }
+            dictionary[3] = c;
+            w = c;
+            result.push(c);
+            while (true) {
+                if (data.index > length) {
+                    return "";
+                }
+
+                bits = 0;
+                maxpower = Math.pow(2,numBits);
+                power=1;
+                while (power!=maxpower) {
+                    resb = data.val & data.position;
+                    data.position >>= 1;
+                    if (data.position == 0) {
+                        data.position = resetValue;
+                        data.val = getNextValue(data.index++);
+                    }
+                    bits |= (resb>0 ? 1 : 0) * power;
+                    power <<= 1;
+                }
+
+                switch (c = bits) {
+                    case 0:
+                        bits = 0;
+                        maxpower = Math.pow(2,8);
+                        power=1;
+                        while (power!=maxpower) {
+                            resb = data.val & data.position;
+                            data.position >>= 1;
+                            if (data.position == 0) {
+                                data.position = resetValue;
+                                data.val = getNextValue(data.index++);
+                            }
+                            bits |= (resb>0 ? 1 : 0) * power;
+                            power <<= 1;
+                        }
+
+                        dictionary[dictSize++] = f(bits);
+                        c = dictSize-1;
+                        enlargeIn--;
+                        break;
+                    case 1:
+                        bits = 0;
+                        maxpower = Math.pow(2,16);
+                        power=1;
+                        while (power!=maxpower) {
+                            resb = data.val & data.position;
+                            data.position >>= 1;
+                            if (data.position == 0) {
+                                data.position = resetValue;
+                                data.val = getNextValue(data.index++);
+                            }
+                            bits |= (resb>0 ? 1 : 0) * power;
+                            power <<= 1;
+                        }
+                        dictionary[dictSize++] = f(bits);
+                        c = dictSize-1;
+                        enlargeIn--;
+                        break;
+                    case 2:
+                        return result.join('');
+                }
+
+                if (enlargeIn == 0) {
+                    enlargeIn = Math.pow(2, numBits);
+                    numBits++;
+                }
+
+                if (dictionary[c]) {
+                    entry = dictionary[c];
+                } else {
+                    if (c === dictSize) {
+                        entry = w + w.charAt(0);
+                    } else {
+                        return null;
+                    }
+                }
+                result.push(entry);
+
+                // Add w+entry[0] to the dictionary.
+                dictionary[dictSize++] = w + entry.charAt(0);
+                enlargeIn--;
+
+                w = entry;
+
+                if (enlargeIn == 0) {
+                    enlargeIn = Math.pow(2, numBits);
+                    numBits++;
+                }
+
+            }
+        }
+    };
+    return LZString;
+})();
 /* FileSaver.js
  * A saveAs() FileSaver implementation.
  * 2013-10-21
@@ -1472,6 +1967,7 @@ O.esri.Tiles.TilesStore = function(){
             };
 
             var objectStore = transaction.objectStore(this.objectStoreName);
+            urlDataPair.url = O.esri.Tiles.LZString.compress(urlDataPair.url);
             urlDataPair.img = O.esri.Tiles.Base64String.compress(urlDataPair.img);
             var request = objectStore.put(urlDataPair);
             request.onsuccess = function()
@@ -1496,7 +1992,7 @@ O.esri.Tiles.TilesStore = function(){
         if(this._db !== null)
         {
             var objectStore = this._db.transaction([this.objectStoreName]).objectStore(this.objectStoreName);
-            var request = objectStore.get(url);
+            var request = objectStore.get(O.esri.Tiles.LZString.compress(url));
             request.onsuccess = function(event)
             {
                 var result = event.target.result;
@@ -1506,6 +2002,7 @@ O.esri.Tiles.TilesStore = function(){
                 }
                 else
                 {
+                    result.url = O.esri.Tiles.LZString.decompress(result.url);
                     result.img = O.esri.Tiles.Base64String.decompress(result.img);
                     callback(true,result);
                 }
@@ -1588,6 +2085,8 @@ O.esri.Tiles.TilesStore = function(){
                 if(cursor){
                     var url = cursor.value.url;
                     var img = cursor.value.img;
+                    url = O.esri.Tiles.LZString.decompress(url);
+                    img = O.esri.Tiles.Base64String.decompress(img);
                     callback(url,img,null);
                     cursor.continue();
                 }
diff --git a/dist/offline-tpk-min.js b/dist/offline-tpk-min.js
index 4b6e7381..2c4343ae 100644
--- a/dist/offline-tpk-min.js
+++ b/dist/offline-tpk-min.js
@@ -52,16 +52,16 @@ return 16+5*f},_getCacheFilePath:function(a,b,c,d){var e=[]
 return e.push(a),e.push("/"),e.push("L"),e.push(10>b?"0"+b:b),e.push("/"),e.push("R"),e.push(this._int2HexString(c)),e.push("C"),e.push(this._int2HexString(d)),e.join("")},_bytes2MBs:function(a){return(a>>>20)+"."+(2046&a)}})}),"undefined"!=typeof O?O.esri.TPK={}:(O={},O.esri={TPK:{},Tiles:{}}),O.esri.Tiles.TilesStore=function(){this._db=null,this.dbName="offline_tile_store",this.objectStoreName="tilepath",this.isSupported=function(){return!(!window.indexedDB&&!window.openDatabase)},this.store=function(a,b){try{var c=this._db.transaction([this.objectStoreName],"readwrite")
 c.oncomplete=function(){b(!0)},c.onerror=function(a){b(!1,a.target.error.message)}
 var d=c.objectStore(this.objectStoreName)
-a.img=O.esri.Tiles.Base64String.compress(a.img)
+a.url=O.esri.Tiles.LZString.compress(a.url),a.img=O.esri.Tiles.Base64String.compress(a.img)
 var e=d.put(a)
-e.onsuccess=function(){}}catch(f){b(!1,f.stack)}},this.retrieve=function(a,b){if(null!==this._db){var c=this._db.transaction([this.objectStoreName]).objectStore(this.objectStoreName),d=c.get(a)
+e.onsuccess=function(){}}catch(f){b(!1,f.stack)}},this.retrieve=function(a,b){if(null!==this._db){var c=this._db.transaction([this.objectStoreName]).objectStore(this.objectStoreName),d=c.get(O.esri.Tiles.LZString.compress(a))
 d.onsuccess=function(a){var c=a.target.result
-void 0===c?b(!1,"not found"):(c.img=O.esri.Tiles.Base64String.decompress(c.img),b(!0,c))},d.onerror=function(a){b(!1,a)}}},this.deleteAll=function(a){if(null!==this._db){var b=this._db.transaction([this.objectStoreName],"readwrite").objectStore(this.objectStoreName).clear()
+void 0===c?b(!1,"not found"):(c.url=O.esri.Tiles.LZString.decompress(c.url),c.img=O.esri.Tiles.Base64String.decompress(c.img),b(!0,c))},d.onerror=function(a){b(!1,a)}}},this.deleteAll=function(a){if(null!==this._db){var b=this._db.transaction([this.objectStoreName],"readwrite").objectStore(this.objectStoreName).clear()
 b.onsuccess=function(){a(!0)},b.onerror=function(b){a(!1,b)}}else a(!1,null)},this["delete"]=function(a,b){if(null!==this._db){var c=this._db.transaction([this.objectStoreName],"readwrite").objectStore(this.objectStoreName)["delete"](a)
 c.onsuccess=function(){b(!0)},c.onerror=function(a){b(!1,a)}}else b(!1,null)},this.getAllTiles=function(a){if(null!==this._db){var b=this._db.transaction([this.objectStoreName]).objectStore(this.objectStoreName).openCursor()
 b.onsuccess=function(b){var c=b.target.result
 if(c){var d=c.value.url,e=c.value.img
-a(d,e,null),c["continue"]()}else a(null,null,"end")}.bind(this),b.onerror=function(b){a(null,null,b)}}else a(null,null,"no db")},this.usedSpace=function(a){if(null!==this._db){var b={sizeBytes:0,tileCount:0},c=this._db.transaction([this.objectStoreName]).objectStore(this.objectStoreName).openCursor()
+d=O.esri.Tiles.LZString.decompress(d),e=O.esri.Tiles.Base64String.decompress(e),a(d,e,null),c["continue"]()}else a(null,null,"end")}.bind(this),b.onerror=function(b){a(null,null,b)}}else a(null,null,"no db")},this.usedSpace=function(a){if(null!==this._db){var b={sizeBytes:0,tileCount:0},c=this._db.transaction([this.objectStoreName]).objectStore(this.objectStoreName).openCursor()
 c.onsuccess=function(c){var d=c.target.result
 if(d){var e=d.value,f=JSON.stringify(e)
 b.sizeBytes+=this._stringBytes(f),b.tileCount+=1,d["continue"]()}else a(b,null)}.bind(this),c.onerror=function(b){a(null,b)}}else a(null,null)},this._stringBytes=function(a){return a.length},this.init=function(a){var b=indexedDB.open(this.dbName,4)
diff --git a/dist/offline-tpk-src.js b/dist/offline-tpk-src.js
index 40a00a83..40edcd73 100644
--- a/dist/offline-tpk-src.js
+++ b/dist/offline-tpk-src.js
@@ -1,4 +1,4 @@
-/*! esri-offline-maps - v3.4.0 - 2016-09-13
+/*! esri-offline-maps - v3.5.0 - 2016-09-15
 *   Copyright (c) 2016 Environmental Systems Research Institute, Inc.
 *   Apache License*/
 /**
@@ -794,6 +794,7 @@ O.esri.Tiles.TilesStore = function(){
             };
 
             var objectStore = transaction.objectStore(this.objectStoreName);
+            urlDataPair.url = O.esri.Tiles.LZString.compress(urlDataPair.url);
             urlDataPair.img = O.esri.Tiles.Base64String.compress(urlDataPair.img);
             var request = objectStore.put(urlDataPair);
             request.onsuccess = function()
@@ -818,7 +819,7 @@ O.esri.Tiles.TilesStore = function(){
         if(this._db !== null)
         {
             var objectStore = this._db.transaction([this.objectStoreName]).objectStore(this.objectStoreName);
-            var request = objectStore.get(url);
+            var request = objectStore.get(O.esri.Tiles.LZString.compress(url));
             request.onsuccess = function(event)
             {
                 var result = event.target.result;
@@ -828,6 +829,7 @@ O.esri.Tiles.TilesStore = function(){
                 }
                 else
                 {
+                    result.url = O.esri.Tiles.LZString.decompress(result.url);
                     result.img = O.esri.Tiles.Base64String.decompress(result.img);
                     callback(true,result);
                 }
@@ -910,6 +912,8 @@ O.esri.Tiles.TilesStore = function(){
                 if(cursor){
                     var url = cursor.value.url;
                     var img = cursor.value.img;
+                    url = O.esri.Tiles.LZString.decompress(url);
+                    img = O.esri.Tiles.Base64String.decompress(img);
                     callback(url,img,null);
                     cursor.continue();
                 }
diff --git a/doc/howtousetiles.md b/doc/howtousetiles.md
index af463fd9..0c1f53a4 100644
--- a/doc/howtousetiles.md
+++ b/doc/howtousetiles.md
@@ -91,7 +91,7 @@ Deletes all tiles stored in the indexed db database.
 The callback is called to indicate success (true) or failure (false,err)
 
 ####basemap.getOfflineUsage(callback)
-It calculates the number of tiles that are stored in the indexed db database and the space used by them. The callback is called with an object containing the result of this calculation:
+It calculates the number of tiles that are stored in the indexed db database and the space used by them. Because the library uses compression, the database size will be significantly smaller than the downloaded tiles size. The callback is called with an object containing the result of this calculation:
 
 ```js
 	{
@@ -245,4 +245,6 @@ If you are using an optimized version of the ArcGIS API for JavaScript make sure
 
 Our general guideline for the amount of total storage you can use on a device is be between 50MBs and 100MBs. If you need greater storage than that you'll need to either switch to a hybrid model (e.g. PhoneGap) or use one of our native ArcGIS Runtime SDKs. The Runtime SDKs have fully supported and robust offline capabilities that go beyond what JavaScript is currently capable of.
 
+The library helps where it can by providing 2.7x compression of the tile imagery and about 50% compression of the tile URLs. 
+
 Some developers have mentioned that they have stored alot more than 100MBs. How much you can store varies between devices and browsers. Every mobile operating system sets a limit on how much memory a single application can use. Since web apps are dependant on the browser, which is a web app, if it consumes too much memory the operating system will simply kill the browser. Poof and it's gone. So, web apps are dependant on a variety of things including how many other browser tabs are open, browser memory leakage especially if it's been running for a long time, other storage being used such as feature edits, the application cache and the general browser cache.
diff --git a/doc/howtousetpklibrary.md b/doc/howtousetpklibrary.md
index 54731433..2f7ab56d 100644
--- a/doc/howtousetpklibrary.md
+++ b/doc/howtousetpklibrary.md
@@ -134,6 +134,8 @@ The following three properties will affect the size of the TPK file. Minimizing
 
 It's a general recommended to keep the size of the local database below 75MBs, with a maximum of 100MBs for best performance. Allowing the database to grow to large can result in browser crashes and slow app performance. 
 
+The library helps where it can by providing 2.7x compression of the tile imagery and about 50% compression of the tile URLs.
+
 The amount of memory allowed to the browser is dependant on many variables including the available device memory, other applications already running and the number of open browser tabs.
 
 
diff --git a/lib/tiles/LICENSE.md b/lib/tiles/LICENSE.md
index d2eadabf..a4eae055 100644
--- a/lib/tiles/LICENSE.md
+++ b/lib/tiles/LICENSE.md
@@ -2,6 +2,10 @@
 License for base64String.js is WTFPL, Version 2, http://www.wtfpl.net/ and provided courtesy and copyright of Pieroxy <pieroxy@pieroxy.net>.
 
 
+## LZString.js
+License for LZString.js is WTFPL, Version 2, http://www.wtfpl.net/ and provided courtesy and copyright of Pieroxy <pieroxy@pieroxy.net>.
+
+
 ## FileSaver.js
 
 License for FileSaver.js
diff --git a/lib/tiles/TilesStore.js b/lib/tiles/TilesStore.js
index 861f1778..4f1ff1fb 100644
--- a/lib/tiles/TilesStore.js
+++ b/lib/tiles/TilesStore.js
@@ -53,6 +53,7 @@ O.esri.Tiles.TilesStore = function(){
             };
 
             var objectStore = transaction.objectStore(this.objectStoreName);
+            urlDataPair.url = O.esri.Tiles.LZString.compress(urlDataPair.url);
             urlDataPair.img = O.esri.Tiles.Base64String.compress(urlDataPair.img);
             var request = objectStore.put(urlDataPair);
             request.onsuccess = function()
@@ -77,7 +78,7 @@ O.esri.Tiles.TilesStore = function(){
         if(this._db !== null)
         {
             var objectStore = this._db.transaction([this.objectStoreName]).objectStore(this.objectStoreName);
-            var request = objectStore.get(url);
+            var request = objectStore.get(O.esri.Tiles.LZString.compress(url));
             request.onsuccess = function(event)
             {
                 var result = event.target.result;
@@ -87,6 +88,7 @@ O.esri.Tiles.TilesStore = function(){
                 }
                 else
                 {
+                    result.url = O.esri.Tiles.LZString.decompress(result.url);
                     result.img = O.esri.Tiles.Base64String.decompress(result.img);
                     callback(true,result);
                 }
@@ -169,6 +171,8 @@ O.esri.Tiles.TilesStore = function(){
                 if(cursor){
                     var url = cursor.value.url;
                     var img = cursor.value.img;
+                    url = O.esri.Tiles.LZString.decompress(url);
+                    img = O.esri.Tiles.Base64String.decompress(img);
                     callback(url,img,null);
                     cursor.continue();
                 }
diff --git a/lib/tiles/lzString.js b/lib/tiles/lzString.js
new file mode 100644
index 00000000..840b8ce0
--- /dev/null
+++ b/lib/tiles/lzString.js
@@ -0,0 +1,495 @@
+// Copyright (c) 2013 Pieroxy <pieroxy@pieroxy.net>
+// This work is free. You can redistribute it and/or modify it
+// under the terms of the WTFPL, Version 2
+// For more information see LICENSE.txt or http://www.wtfpl.net/
+//
+// For more information, the home page:
+// http://pieroxy.net/blog/pages/lz-string/testing.html
+//
+// LZ-based compression algorithm, version 1.4.4
+O.esri.Tiles.LZString = (function() {
+
+// private property
+    var f = String.fromCharCode;
+    var keyStrBase64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
+    var keyStrUriSafe = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+-$";
+    var baseReverseDic = {};
+
+    function getBaseValue(alphabet, character) {
+        if (!baseReverseDic[alphabet]) {
+            baseReverseDic[alphabet] = {};
+            for (var i=0 ; i<alphabet.length ; i++) {
+                baseReverseDic[alphabet][alphabet.charAt(i)] = i;
+            }
+        }
+        return baseReverseDic[alphabet][character];
+    }
+
+    var LZString = {
+        compressToBase64 : function (input) {
+            if (input == null) return "";
+            var res = LZString._compress(input, 6, function(a){return keyStrBase64.charAt(a);});
+            switch (res.length % 4) { // To produce valid Base64
+                default: // When could this happen ?
+                case 0 : return res;
+                case 1 : return res+"===";
+                case 2 : return res+"==";
+                case 3 : return res+"=";
+            }
+        },
+
+        decompressFromBase64 : function (input) {
+            if (input == null) return "";
+            if (input == "") return null;
+            return LZString._decompress(input.length, 32, function(index) { return getBaseValue(keyStrBase64, input.charAt(index)); });
+        },
+
+        compressToUTF16 : function (input) {
+            if (input == null) return "";
+            return LZString._compress(input, 15, function(a){return f(a+32);}) + " ";
+        },
+
+        decompressFromUTF16: function (compressed) {
+            if (compressed == null) return "";
+            if (compressed == "") return null;
+            return LZString._decompress(compressed.length, 16384, function(index) { return compressed.charCodeAt(index) - 32; });
+        },
+
+        //compress into uint8array (UCS-2 big endian format)
+        compressToUint8Array: function (uncompressed) {
+            var compressed = LZString.compress(uncompressed);
+            var buf=new Uint8Array(compressed.length*2); // 2 bytes per character
+
+            for (var i=0, TotalLen=compressed.length; i<TotalLen; i++) {
+                var current_value = compressed.charCodeAt(i);
+                buf[i*2] = current_value >>> 8;
+                buf[i*2+1] = current_value % 256;
+            }
+            return buf;
+        },
+
+        //decompress from uint8array (UCS-2 big endian format)
+        decompressFromUint8Array:function (compressed) {
+            if (compressed===null || compressed===undefined){
+                return LZString.decompress(compressed);
+            } else {
+                var buf=new Array(compressed.length/2); // 2 bytes per character
+                for (var i=0, TotalLen=buf.length; i<TotalLen; i++) {
+                    buf[i]=compressed[i*2]*256+compressed[i*2+1];
+                }
+
+                var result = [];
+                buf.forEach(function (c) {
+                    result.push(f(c));
+                });
+                return LZString.decompress(result.join(''));
+
+            }
+
+        },
+
+
+        //compress into a string that is already URI encoded
+        compressToEncodedURIComponent: function (input) {
+            if (input == null) return "";
+            return LZString._compress(input, 6, function(a){return keyStrUriSafe.charAt(a);});
+        },
+
+        //decompress from an output of compressToEncodedURIComponent
+        decompressFromEncodedURIComponent:function (input) {
+            if (input == null) return "";
+            if (input == "") return null;
+            input = input.replace(/ /g, "+");
+            return LZString._decompress(input.length, 32, function(index) { return getBaseValue(keyStrUriSafe, input.charAt(index)); });
+        },
+
+        compress: function (uncompressed) {
+            return LZString._compress(uncompressed, 16, function(a){return f(a);});
+        },
+        _compress: function (uncompressed, bitsPerChar, getCharFromInt) {
+            if (uncompressed == null) return "";
+            var i, value,
+                context_dictionary= {},
+                context_dictionaryToCreate= {},
+                context_c="",
+                context_wc="",
+                context_w="",
+                context_enlargeIn= 2, // Compensate for the first entry which should not count
+                context_dictSize= 3,
+                context_numBits= 2,
+                context_data=[],
+                context_data_val=0,
+                context_data_position=0,
+                ii;
+
+            for (ii = 0; ii < uncompressed.length; ii += 1) {
+                context_c = uncompressed.charAt(ii);
+                if (!Object.prototype.hasOwnProperty.call(context_dictionary,context_c)) {
+                    context_dictionary[context_c] = context_dictSize++;
+                    context_dictionaryToCreate[context_c] = true;
+                }
+
+                context_wc = context_w + context_c;
+                if (Object.prototype.hasOwnProperty.call(context_dictionary,context_wc)) {
+                    context_w = context_wc;
+                } else {
+                    if (Object.prototype.hasOwnProperty.call(context_dictionaryToCreate,context_w)) {
+                        if (context_w.charCodeAt(0)<256) {
+                            for (i=0 ; i<context_numBits ; i++) {
+                                context_data_val = (context_data_val << 1);
+                                if (context_data_position == bitsPerChar-1) {
+                                    context_data_position = 0;
+                                    context_data.push(getCharFromInt(context_data_val));
+                                    context_data_val = 0;
+                                } else {
+                                    context_data_position++;
+                                }
+                            }
+                            value = context_w.charCodeAt(0);
+                            for (i=0 ; i<8 ; i++) {
+                                context_data_val = (context_data_val << 1) | (value&1);
+                                if (context_data_position == bitsPerChar-1) {
+                                    context_data_position = 0;
+                                    context_data.push(getCharFromInt(context_data_val));
+                                    context_data_val = 0;
+                                } else {
+                                    context_data_position++;
+                                }
+                                value = value >> 1;
+                            }
+                        } else {
+                            value = 1;
+                            for (i=0 ; i<context_numBits ; i++) {
+                                context_data_val = (context_data_val << 1) | value;
+                                if (context_data_position ==bitsPerChar-1) {
+                                    context_data_position = 0;
+                                    context_data.push(getCharFromInt(context_data_val));
+                                    context_data_val = 0;
+                                } else {
+                                    context_data_position++;
+                                }
+                                value = 0;
+                            }
+                            value = context_w.charCodeAt(0);
+                            for (i=0 ; i<16 ; i++) {
+                                context_data_val = (context_data_val << 1) | (value&1);
+                                if (context_data_position == bitsPerChar-1) {
+                                    context_data_position = 0;
+                                    context_data.push(getCharFromInt(context_data_val));
+                                    context_data_val = 0;
+                                } else {
+                                    context_data_position++;
+                                }
+                                value = value >> 1;
+                            }
+                        }
+                        context_enlargeIn--;
+                        if (context_enlargeIn == 0) {
+                            context_enlargeIn = Math.pow(2, context_numBits);
+                            context_numBits++;
+                        }
+                        delete context_dictionaryToCreate[context_w];
+                    } else {
+                        value = context_dictionary[context_w];
+                        for (i=0 ; i<context_numBits ; i++) {
+                            context_data_val = (context_data_val << 1) | (value&1);
+                            if (context_data_position == bitsPerChar-1) {
+                                context_data_position = 0;
+                                context_data.push(getCharFromInt(context_data_val));
+                                context_data_val = 0;
+                            } else {
+                                context_data_position++;
+                            }
+                            value = value >> 1;
+                        }
+
+
+                    }
+                    context_enlargeIn--;
+                    if (context_enlargeIn == 0) {
+                        context_enlargeIn = Math.pow(2, context_numBits);
+                        context_numBits++;
+                    }
+                    // Add wc to the dictionary.
+                    context_dictionary[context_wc] = context_dictSize++;
+                    context_w = String(context_c);
+                }
+            }
+
+            // Output the code for w.
+            if (context_w !== "") {
+                if (Object.prototype.hasOwnProperty.call(context_dictionaryToCreate,context_w)) {
+                    if (context_w.charCodeAt(0)<256) {
+                        for (i=0 ; i<context_numBits ; i++) {
+                            context_data_val = (context_data_val << 1);
+                            if (context_data_position == bitsPerChar-1) {
+                                context_data_position = 0;
+                                context_data.push(getCharFromInt(context_data_val));
+                                context_data_val = 0;
+                            } else {
+                                context_data_position++;
+                            }
+                        }
+                        value = context_w.charCodeAt(0);
+                        for (i=0 ; i<8 ; i++) {
+                            context_data_val = (context_data_val << 1) | (value&1);
+                            if (context_data_position == bitsPerChar-1) {
+                                context_data_position = 0;
+                                context_data.push(getCharFromInt(context_data_val));
+                                context_data_val = 0;
+                            } else {
+                                context_data_position++;
+                            }
+                            value = value >> 1;
+                        }
+                    } else {
+                        value = 1;
+                        for (i=0 ; i<context_numBits ; i++) {
+                            context_data_val = (context_data_val << 1) | value;
+                            if (context_data_position == bitsPerChar-1) {
+                                context_data_position = 0;
+                                context_data.push(getCharFromInt(context_data_val));
+                                context_data_val = 0;
+                            } else {
+                                context_data_position++;
+                            }
+                            value = 0;
+                        }
+                        value = context_w.charCodeAt(0);
+                        for (i=0 ; i<16 ; i++) {
+                            context_data_val = (context_data_val << 1) | (value&1);
+                            if (context_data_position == bitsPerChar-1) {
+                                context_data_position = 0;
+                                context_data.push(getCharFromInt(context_data_val));
+                                context_data_val = 0;
+                            } else {
+                                context_data_position++;
+                            }
+                            value = value >> 1;
+                        }
+                    }
+                    context_enlargeIn--;
+                    if (context_enlargeIn == 0) {
+                        context_enlargeIn = Math.pow(2, context_numBits);
+                        context_numBits++;
+                    }
+                    delete context_dictionaryToCreate[context_w];
+                } else {
+                    value = context_dictionary[context_w];
+                    for (i=0 ; i<context_numBits ; i++) {
+                        context_data_val = (context_data_val << 1) | (value&1);
+                        if (context_data_position == bitsPerChar-1) {
+                            context_data_position = 0;
+                            context_data.push(getCharFromInt(context_data_val));
+                            context_data_val = 0;
+                        } else {
+                            context_data_position++;
+                        }
+                        value = value >> 1;
+                    }
+
+
+                }
+                context_enlargeIn--;
+                if (context_enlargeIn == 0) {
+                    context_enlargeIn = Math.pow(2, context_numBits);
+                    context_numBits++;
+                }
+            }
+
+            // Mark the end of the stream
+            value = 2;
+            for (i=0 ; i<context_numBits ; i++) {
+                context_data_val = (context_data_val << 1) | (value&1);
+                if (context_data_position == bitsPerChar-1) {
+                    context_data_position = 0;
+                    context_data.push(getCharFromInt(context_data_val));
+                    context_data_val = 0;
+                } else {
+                    context_data_position++;
+                }
+                value = value >> 1;
+            }
+
+            // Flush the last char
+            while (true) {
+                context_data_val = (context_data_val << 1);
+                if (context_data_position == bitsPerChar-1) {
+                    context_data.push(getCharFromInt(context_data_val));
+                    break;
+                }
+                else context_data_position++;
+            }
+            return context_data.join('');
+        },
+
+        decompress: function (compressed) {
+            if (compressed == null) return "";
+            if (compressed == "") return null;
+            return LZString._decompress(compressed.length, 32768, function(index) { return compressed.charCodeAt(index); });
+        },
+
+        _decompress: function (length, resetValue, getNextValue) {
+            var dictionary = [],
+                next,
+                enlargeIn = 4,
+                dictSize = 4,
+                numBits = 3,
+                entry = "",
+                result = [],
+                i,
+                w,
+                bits, resb, maxpower, power,
+                c,
+                data = {val:getNextValue(0), position:resetValue, index:1};
+
+            for (i = 0; i < 3; i += 1) {
+                dictionary[i] = i;
+            }
+
+            bits = 0;
+            maxpower = Math.pow(2,2);
+            power=1;
+            while (power!=maxpower) {
+                resb = data.val & data.position;
+                data.position >>= 1;
+                if (data.position == 0) {
+                    data.position = resetValue;
+                    data.val = getNextValue(data.index++);
+                }
+                bits |= (resb>0 ? 1 : 0) * power;
+                power <<= 1;
+            }
+
+            switch (next = bits) {
+                case 0:
+                    bits = 0;
+                    maxpower = Math.pow(2,8);
+                    power=1;
+                    while (power!=maxpower) {
+                        resb = data.val & data.position;
+                        data.position >>= 1;
+                        if (data.position == 0) {
+                            data.position = resetValue;
+                            data.val = getNextValue(data.index++);
+                        }
+                        bits |= (resb>0 ? 1 : 0) * power;
+                        power <<= 1;
+                    }
+                    c = f(bits);
+                    break;
+                case 1:
+                    bits = 0;
+                    maxpower = Math.pow(2,16);
+                    power=1;
+                    while (power!=maxpower) {
+                        resb = data.val & data.position;
+                        data.position >>= 1;
+                        if (data.position == 0) {
+                            data.position = resetValue;
+                            data.val = getNextValue(data.index++);
+                        }
+                        bits |= (resb>0 ? 1 : 0) * power;
+                        power <<= 1;
+                    }
+                    c = f(bits);
+                    break;
+                case 2:
+                    return "";
+            }
+            dictionary[3] = c;
+            w = c;
+            result.push(c);
+            while (true) {
+                if (data.index > length) {
+                    return "";
+                }
+
+                bits = 0;
+                maxpower = Math.pow(2,numBits);
+                power=1;
+                while (power!=maxpower) {
+                    resb = data.val & data.position;
+                    data.position >>= 1;
+                    if (data.position == 0) {
+                        data.position = resetValue;
+                        data.val = getNextValue(data.index++);
+                    }
+                    bits |= (resb>0 ? 1 : 0) * power;
+                    power <<= 1;
+                }
+
+                switch (c = bits) {
+                    case 0:
+                        bits = 0;
+                        maxpower = Math.pow(2,8);
+                        power=1;
+                        while (power!=maxpower) {
+                            resb = data.val & data.position;
+                            data.position >>= 1;
+                            if (data.position == 0) {
+                                data.position = resetValue;
+                                data.val = getNextValue(data.index++);
+                            }
+                            bits |= (resb>0 ? 1 : 0) * power;
+                            power <<= 1;
+                        }
+
+                        dictionary[dictSize++] = f(bits);
+                        c = dictSize-1;
+                        enlargeIn--;
+                        break;
+                    case 1:
+                        bits = 0;
+                        maxpower = Math.pow(2,16);
+                        power=1;
+                        while (power!=maxpower) {
+                            resb = data.val & data.position;
+                            data.position >>= 1;
+                            if (data.position == 0) {
+                                data.position = resetValue;
+                                data.val = getNextValue(data.index++);
+                            }
+                            bits |= (resb>0 ? 1 : 0) * power;
+                            power <<= 1;
+                        }
+                        dictionary[dictSize++] = f(bits);
+                        c = dictSize-1;
+                        enlargeIn--;
+                        break;
+                    case 2:
+                        return result.join('');
+                }
+
+                if (enlargeIn == 0) {
+                    enlargeIn = Math.pow(2, numBits);
+                    numBits++;
+                }
+
+                if (dictionary[c]) {
+                    entry = dictionary[c];
+                } else {
+                    if (c === dictSize) {
+                        entry = w + w.charAt(0);
+                    } else {
+                        return null;
+                    }
+                }
+                result.push(entry);
+
+                // Add w+entry[0] to the dictionary.
+                dictionary[dictSize++] = w + entry.charAt(0);
+                enlargeIn--;
+
+                w = entry;
+
+                if (enlargeIn == 0) {
+                    enlargeIn = Math.pow(2, numBits);
+                    numBits++;
+                }
+
+            }
+        }
+    };
+    return LZString;
+})();
\ No newline at end of file
diff --git a/package.json b/package.json
index 315948da..43ec69dc 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "esri-offline-maps",
-  "version": "3.4.0",
+  "version": "3.5.0",
   "description": "Lightweight set of libraries for working offline with map tiles and editing with ArcGIS feature services",
   "author": "Andy Gup <agup@esri.com> (http://blog.andygup.net)",
   "license": "Apache 2.0",
@@ -15,7 +15,8 @@
     "offline",
     "gis",
     "maps",
-    "mapping"
+    "mapping",
+    "tiles"
   ],
   "repository": {
     "type": "git",
diff --git a/samples/package.json b/samples/package.json
index 02ba7340..e2960627 100644
--- a/samples/package.json
+++ b/samples/package.json
@@ -9,7 +9,7 @@
   "appHomePage": "appcache-tiles.html",
   "optimizedApiURL": "../samples/jsolib",
   "arcGISBaseURL": "http://js.arcgis.com/3.14",
-  "version": "3.4.0",
+  "version": "3.5.0",
   "private": true,
   "description": "manifest generator project",
   "repository": {
diff --git a/samples/simple-tiles.html b/samples/simple-tiles.html
index dbda2a60..1bbffd9c 100644
--- a/samples/simple-tiles.html
+++ b/samples/simple-tiles.html
@@ -163,7 +163,7 @@ <h3>Map: <span id="mapTitle">[none]</span></h3>
 					<tr>
 						<th>Level</th>
 						<th>Tile Count</th>
-						<th>Size Mb (aprox.)</th>
+						<th>~Download Size</th>
 					</tr>
 				</thead>
 				<tbody id="tile-count-table-body">
@@ -183,7 +183,7 @@ <h3>Map: <span id="mapTitle">[none]</span></h3>
 				<button id="delete-all-tiles-btn" type="button" class="btn btn-danger"><i class="glyphicon glyphicon-floppy-remove"></i> Delete All Tiles</button>
 				<button id="go-offline-btn" type="button" class="btn btn-default"><i class="fa fa-chain-broken"></i> Go Offline</button>
 				<button id="go-online-btn" type="button" class="btn btn-default" disabled="disabled" style="display:none;"><i class="fa fa-link"></i> Go Online</button>
-				<button id="update-offline-usage" type="button" class="btn btn-default"><i class="fa fa-refresh"></i> Usage: <span id="offline-usage">[click to update]</span></button>
+				<button id="update-offline-usage" type="button" class="btn btn-default"><i class="fa fa-refresh"></i> DB Usage: <span id="offline-usage">[click to update]</span></button>
 				<button id="show-stored-tiles" type="button" class="btn btn-default"><i class="fa fa-th"></i> <span id="show-stored-tiles-caption">Show Stored Tiles</span></button>
 				<button id="save-file" type="button" class="btn btn-default"><i class="fa fa-download"></i> Save to File</button>
 				<span id="load-file" type="button" class="btn btn-default"><i class="fa fa-upload"></i> Load from File <input type="file" id="file-select" name="file-select"></span>
@@ -259,7 +259,7 @@ <h3>Map: <span id="mapTitle">[none]</span></h3>
     "dojo/on", "dojo/query",
     "dojo/dom","dojo/dom-construct","dojo/dom-class","dojo/dom-style",
     "dojo/_base/window",
-    "bootstrapmap","../dist/offline-tiles-basic-min.js", "dojo/domReady!"],
+    "bootstrapmap","../dist/offline-tiles-basic-src.js", "dojo/domReady!"],
 	function(Map,
 		GraphicsLayer, Graphic, SimpleFillSymbol,
 		Scalebar, esriUtils, geometry,