Download Chdman.exe May 2026
chdman.exe verify -i "game.chd"
The most legitimate source is the official MAME development team.
Step 1: Go to the official MAME page: https://www.mamedev.org/release.html
Step 2: Find the "Latest MAME Release" for your operating system: download chdman.exe
Step 3: Extract the archive using 7-Zip or WinRAR.
Step 4: Navigate to the folder mame0259b_64bit\mame64\.
You will find chdman.exe sitting right alongside mame64.exe. chdman
Step 5: Copy chdman.exe to a dedicated folder (e.g., C:\CHD_Tools). You can delete the rest of the MAME files if you don't need them, but keeping the folder intact ensures future updates work.
The following operations are performed via the Windows Command Prompt (cmd.exe). It is highly recommended to place chdman.exe in the same folder as the files you wish to convert, or add its directory to your system PATH variable. The most legitimate source is the official MAME
Since chdman.exe has no graphical interface, you must use Command Prompt (Windows) or Terminal (macOS/Linux). Always place your input disk images in the same folder as chdman.exe for simplicity.
Open Command Prompt as Admin (not always required, but helpful for folder access)
cd C:\CHD_Tools

