Chdman ((full)) May 2026

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 .

chdman createcd -i "Final Fantasy VII Disc 1.cue" -o "Final Fantasy VII Disc 1.chd" Use createcd with a GDI file. chdman

chdman copy -i old_v4.chd -o new_v5.chd -c zstd (zstd = Zstandard compression; others: lzma, flac, huffman) Assume you have a folder of BIN/CUE PS1 games. For decades, MAME (Multiple Arcade Machine Emulator) focused

| Emulator | CHD Support | |----------|--------------| | MAME / MESS | ✅ Native | | RetroArch (MAME core) | ✅ | | DuckStation (PS1) | ✅ | | PCSX2 (PS2) | ✅ (since recent builds) | | Redream (Dreamcast) | ✅ | | AetherSX2 (Android PS2) | ✅ | | Flycast (Dreamcast/Naomi) | ✅ | chdman copy -i old_v4

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

chdman createcd -i input_file.cue -o output_file.chd