CHD compression is often more efficient for disc images than ZIP or 7Z.
Copy chdman.exe into the folder where your ZIP files are located. Open and paste the following code: Convert Zip To Chd
Created by the MAME (Multiple Arcade Machine Emulator) team, the is a "lossless" compression scheme designed specifically for hard drives, CD-ROMs, and LD-ROMs. CHD compression is often more efficient for disc
Often found on emulation forums, these provide sliders and progress bars for your conversions. Important Considerations Convert Zip To Chd
However, manual entry is tedious if you have hundreds of games. Method 2: The "Batch" Method (Recommended)