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OctaMED Modules

The game’s music is stored as OctaMED MMD0 tracker modules. Three are found in bcdfu:

Module Offset Length
#1 0x002130 25,212
#2 0x0083AC 81,696 (largest)
#3 0x01C2CC 25,978

An additional MMD0 module is embedded in bcdfq’s CHIP data hunk.

Offset Size Description
0x00 4 Magic: "MMD0"
0x04 2 Module length (in words)
0x06 2 Header length (usually 52 = 0x34)
0x08 2 Song length (in positions)
0x0A 2 Instrument data offset
0x0C 2 Sample data offset
0x0E 2 Track data offset / flags

The extracted effect sounds are available as raw 8-bit PCM under public/assets/blackcrypt/amiga/audio/ (see the screens gallery for the full asset index).