As the MAMEdev team discovers better ways to dump data from old chips, the "correct" version of a ROM changes. A set that worked in 2010 might be "broken" today because the emulator now requires a more accurate, complete data dump.
The parent and all its clones are packed into a single ZIP file. Mame Full Set Roms
MAME Full Set is the "holy grail" for retro gaming enthusiasts—a complete collection of every arcade game ROM supported by the Multiple Arcade Machine Emulator. As the MAMEdev team discovers better ways to
Can someone explain to me what MAME really is : r/retrogaming Mame Full Set Roms