September 24, 20241 yr over in audio we've been working on extracting the sound files from Disney Speedstorm, which runs on developer Gameloft's proprietary Jet Engine. the pack_sd.pack archive contains all audio files (BNK/WEM, WAV), with 16-char alphanumeric filenames and no metadata. i've extracted the audio files from every version of the game since launch. i noticed that every game version's pack_sd.pack archive has a single file in common — 397F9F6720B1625D — that seems to grow larger with each and every patch: ...which makes me strongly suspect that it's some kind of index or manifest containing metadata for all of the other BNK/WEM and WAV files in the pack_sd.pack. because of that, i'd like to see if there's a way to identify and read this file, in case it might help with identification and labeling. here's what i've done so far. ran it through signsrch to no avail. ran it through comtype_scan2 but i'm still combing through the results.. popped them into a hex editor, and there's no obvious compression that i can recognize. when i compare the Season 4 and Season 9 versions of the file, i notice they share many chunks in common at fixed intervals: that's everything i've thrown at it so far. does any of this strike a chord with anyone? if anyone wants to take a crack at it, here's a ZIP containing every version of this file from season 4 to season 9: 397F9F6720B1625D.zip any help would be much appreciated!
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