Chdman [hot] -

chdman createcd -i "game.gdi" -o "game.chd" For arcade hard drives (CHD v1/v2/v3) or PC hard disk images:

chdman createhd -i input.raw -o output.chd -s source_size_in_bytes (Modern MAME often auto-detects size, but you may need -s for raw dumps.) Useful for modding or verifying: chdman

chdman extracthd -i harddrive.chd -o extracted.raw Checks the internal hashes without extracting: chdman createcd -i "game

For decades, MAME (Multiple Arcade Machine Emulator) focused on arcade PCBs. However, as the project evolved into a comprehensive emulation umbrella for computers, consoles, and arcade machines, a new problem emerged: hard drive images, CD-ROMs, and laser discs . and arcade machines

| Emulator | CHD Support | |----------|--------------| | MAME / MESS | ✅ Native | | RetroArch (MAME core) | ✅ | | DuckStation (PS1) | ✅ | | PCSX2 (PS2) | ✅ (since recent builds) | | Redream (Dreamcast) | ✅ | | AetherSX2 (Android PS2) | ✅ | | Flycast (Dreamcast/Naomi) | ✅ |