Reverse-engineering notes on Ultra CD-i Soccer (Krisalis / Philips Interactive Media, 1997): CD-i Green Book filesystem, OS-9/68000 executable, CLUT and rlspr graphics, ADPCM audio, the MPEG-1 intro, the 75-team database - and 5.2 MB of scrambled audio the game never reads.
documentation reverse-engineering retrocomputing m68k iso9660 leftovers adpcm football-game disc-image file-formats cd-i 1997 mpeg-1 philips-cdi os-9 game-preservation green-book cdrtos krisalis philips-interactive-media
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Aug 27, 2026 - Python