Because chdman is a command-line tool, it requires entering text commands rather than clicking buttons. However, it is simple to learn.
: To convert all CUE files in a folder at once, use this loop in the command prompt:
Find the "Latest MAME Release" for your operating system:
The Ultimate Guide to chdman.exe: Compress and Manage Your ROM Collection download chdman.exe
Do not delete your original ISOs until you test the CHD. Here is the compatibility shortlist:
chdman.exe (Compressed Hunks of Data manager) is actually a sub-tool of the emulator project. It is not officially distributed as a standalone file, so the safest way to get the latest, most stable version is to download the full MAME package. Download : Go to the MAMEdev Downloads page .
: Windows (standard), though Linux and macOS users can compile it from the MAME source code. Supported Emulators : MAME : Full native support. Because chdman is a command-line tool, it requires
for %i in (*.cue) do chdman createcd -i "%i" -o "%~ni.chd"
CHD compression can reduce the size of disc-based games (ISO, GDI, BIN/CUE) by up to 50% 1.2.1 .
The Ultimate Guide to chdman.exe: How to Download, Install, and Compress ROMs Here is the compatibility shortlist: chdman
Reduces file sizes by 30% to 60% depending on the game.
: Modern emulators like DuckStation (PS1), PCSX2 (PS2), RetroArch, and Flycast (Dreamcast) natively support .chd files. How to Download chdman.exe Safely