chdman extracthd -i input.chd -o output.iso
However, as you will see below, there are several valid scenarios where you might need to revert a CHD back to a standard ISO file.
This method works identically on Windows, macOS, and Linux.
If typing commands sounds intimidating, you can use batch scripts that act as a "wrapper" for chdman . The on GitHub are an excellent example. convert chd to iso repack
-o : Output CUE file (it will automatically generate the corresponding .bin files).
You want to modify or "hack" the game files (e.g., applying English translation patches).
For CD-based games (like PS1 or Sega CD), extractcd is preferred because it handles multiple tracks: chdman extractcd -i "yourgame.chd" -o "yourgame.cue" Use code with caution. Copied to clipboard chdman extracthd -i input
Method 2: Batch Converting Multiple CHDs to ISO (Recommended)
Open the downloaded archive and extract only the file named chdman.exe .
Ensure you are using the latest version of chdman to ensure compatibility with modern compression techniques. The on GitHub are an excellent example
If you deal with retro gaming archives, you’ve likely seen the format. It is fantastic for saving space—often shrinking ISOs by 50% or more.
. The specific command depends on whether the original disc was a CD or a DVD. Method 1: Command Line (Windows/Linux)
Note: extractcd is used for audio-based media (PS1, Saturn, Dreamcast). Use extractdvd for DVD-based media (PS2). 4. Alternative: Using a GUI Wrapper (Easier)