, the official command-line tool developed by the MAME Team . While graphical wrappers exist, utilizing the native command-line tool or a custom batch script is the only way to prevent file corruption, maintain exact sector-by-sector integrity, and process entire game libraries simultaneously.
Does your CHD come from a game console CD? │ ├─ YES (PS1, Saturn, Sega CD, PCE CD, etc.) │ └─ Use: chdman extractcd → BIN/CUE (not ISO) │ └─ NO (e.g., PC CD, DVD-Video, single-track data) └─ Use: chdman extracthd → ISO convert chd to iso better
Easy-to-use GUI; supports single or batch conversion without command lines. Win/Mac/Linux Advanced Users To convert CHD to ISO better, you must
bchunk output.bin output.cue output.iso
(Note: bchunk handles only data tracks.)