Introduction: Why Change Your ROM Format? For decades, the .zip file has been the standard container for arcade ROMs (MAME) and disc-based game images. It’s convenient, reduces file size, and is universally supported. However, as emulation has evolved, a new champion has emerged for disc-based games: CHD (Compressed Hunks of Data) .
The workflow is trivial once automated:
Absolutely none. CHD uses lossless compression for game data and lossless FLAC for CD audio. Your game will be bit-for-bit identical to the original disc. Convert Zip To Chd