Converting games one by one is tedious if you have a large library. You can automate the entire process using a simple Windows batch script. 1. Create the Script Open on your computer. Copy and paste the following code into the blank document:
One of the biggest headaches in retro emulation is a ZIP file that contains multiple .bin files (usually representing game audio tracks) alongside a single .cue file.
# Step 1: Extract the disc image from ZIP unzip game.zip -d ./temp/
When an emulator runs a ZIP file, it usually has to unzip the entire game into a temporary folder first. This causes long delay times before the game boots. CHD files stream directly, resulting in instant startup. Convert Zip To Chd
CHDMAN cannot read files inside a ZIP archive directly to create a CHD. You must first extract your ZIP files so that your game discs are in their native formats (such as .bin/.cue , .gdi , or .iso ). Select all your ZIP files.
Stop hoarding messy ZIP files that break your scrapers and slow down your frontend. Spend 10 minutes setting up chdman and convert your entire library. Your SSD will thank you, your emulator will launch games instantly, and your retro handheld will hold twice as many games.
Download the latest version of to get the official chdman.exe , or download a pre-packaged script like CHD-MANager from trusted community repositories (like GitHub or safe emulation forums). Converting games one by one is tedious if
If CHDMAN throws an error, it is usually because your .cue file contains a typo. Open the .cue file with a text editor (like Notepad) and ensure that the filename listed inside the quotation marks exactly matches the filename of your .bin file. Multi-Disc Games
Type cmd and press to open the Command Prompt inside that folder. Type the following command based on your game type: For ISO files (PS2, GameCube): chdman createcd -i "gamename.iso" -o "gamename.chd" Use code with caution. For CUE/BIN files (PS1, Saturn): chdman createcd -i "gamename.cue" -o "gamename.chd" Use code with caution. Press Enter and wait for the progress bar to reach 100%. Step 3: Clean Up Your Storage
This comprehensive guide will explain why you should convert your ZIP files to CHD and provide step-by-step instructions on how to do it efficiently. Why You Should Convert ZIP to CHD Create the Script Open on your computer
: A basic interface that lets you point to your MAME folder and your ROM folder to start a mass conversion. Compatibility Check
To convert everything in /path/to/roms , run the script recursively and keep the original files (optional):
Open your terminal and install MAME tools via your distribution's package manager: sudo apt install mame-tools Fedora: sudo dnf install mame-tools Arch Linux: sudo pacman -S mame-tools Navigate to your extracted game folder. Run the same bash script used for Mac:
Explain how to if you ever need the original files.
If you strictly prefer a visual interface where you can drag and drop files instead of launching batch scripts, is an excellent open-source graphical frontend for CHDMAN. Download NamDHC from its official GitHub repository.