The "Parent" ROM is required to run any "Clone." This is the most common format but the most frustrating for beginners. How to Use Your MAME 0.72 Repack
To get the most out of your arcade library, consider the following: mame 072 roms repack
Clones are tucked inside the parent ZIP. Saves space, but harder to curate. The "Parent" ROM is required to run any "Clone
Ensure your emulator is set to MAME 2003 (not 2003-Plus or 2010). mame 072 roms repack
Always remember that ROMs are copyrighted material. Ensure you own the original arcade boards or use sets for archival and educational purposes according to your local regulations. Conclusion
Instead of having six versions of Street Fighter II , a repack often keeps only the best "Parent" ROM (usually the US or World version).