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  • Console is able to extract .asd files with 6.5 MB
  • seems like rom size should be less than 1 MB for to play
  • seen problem with multi-cart roms
  • random names for .asd and .bin files works as long as hsk00.asd file is updated
  • ncs files are just like asd files. descramble command can extract game from .ncs file
  • Menu.logXX are also images. Menu.log07 to Menu.log25 contains mushroom selector in menu
  • .logXX, .binXX are interchangeble
  • XOR of c8 and value at offset: 04 (.bin, logXX) will give image starting first two bytes
  • In "(1400 + 520 rus) model", hsk00.asd contains animated mushroom slices, but in "Y2 model", hsk00.asd contains game list
  • Menu.ocv (both Y2 and Y2 plus) contains background music
  • classics_menu_ok.drm (Not sure from which console) and Menu.ocv (from Y2) have same music. But their content is different though
  • Files that starts with SP_ToneMaker/SPF2ALP contains music/sound
  • I assumed Menu.ocv contains PCM raw data and played with audacity (8bit unsinged, Mono, saample rate: 22050), I hear music, but there is too much noise. Either my settings are wrong or its not PCM
  • G+ gadget audio file batch converter can be used to make "data frog Y2" supported music.
    • Download
    • Alogirthm: H/W PCM 16-Bit (DRM)
    • I tried with sample rates: 22050, 11025 wav input files
    • Output drm file more than 3MB didn't work for me

REFERENCES

SD Card Backups