If you want just chdman.exe without downloading full MAME, some trusted users repackage it. The safest among them is from (RetroArch team):
In some cases, CHD files can lead to faster emulation loading times. Download chdman.exe Safely download chdman.exe
chdman.exe is a command‑line utility bundled with the project. Its primary purpose is to create, convert, verify, and extract CHD (Compressed Hunks of Data) files —the archive format MAME uses to store large ROM sets, hard‑disk images, laserdiscs, and other media in a space‑efficient manner. If you want just chdman
Extract the archive using 7-Zip or WinRAR. download chdman.exe
If you want just chdman.exe without downloading full MAME, some trusted users repackage it. The safest among them is from (RetroArch team):
In some cases, CHD files can lead to faster emulation loading times. Download chdman.exe Safely
chdman.exe is a command‑line utility bundled with the project. Its primary purpose is to create, convert, verify, and extract CHD (Compressed Hunks of Data) files —the archive format MAME uses to store large ROM sets, hard‑disk images, laserdiscs, and other media in a space‑efficient manner.
Extract the archive using 7-Zip or WinRAR.