roms/psx/ (system BIOS) software/psx/ (software list folder) game.chd (CHD file) Launch via:
chdman extractcd -i game.chd -o output.cue
chdman createcd -i game.cue -o game.chd -c zstd Same command, but ensure input is a valid ISO or CUE. 5. Extracting CHD back to raw image To edit or inspect contents, extract the CHD: chd files for mame
mame psx -cdrom /path/to/game.chd Create CHDs from multiple CUE files:
mame psx game For RetroArch (with MAME core): CHD works directly. for %f in (*
for %f in (*.cue) do chdman createcd -i "%f" -o "%~nf.chd"
for %f in (*.chd) do chdman verify -i "%f" Many arcade games (e.g., Gauntlet Legends , Carnevil , Golden Tee Golf ) use hard disks stored as CHD. chd files for mame
Input file: game.chd File Version: 5 Logical size: 650,000,000 bytes Hunk Size: 2048 bytes Total Hunks: 317,382 Compression: zstd If you have an old CHD (v3 or v4) and want v5: