The parent ROM is the definitive, complete version of a game—usually the original, full-production release from the primary manufacturer (e.g., the Japanese or US revision 1). It contains all the core graphics, audio, and program data required to execute the game. 2. Clone ROMs
Unlike console emulators (such as those for the NES or Sega Genesis) which typically package an entire game into a single .nes or .bin file, MAME handles files differently. An arcade machine usually contains multiple chips: Contain the core game program and logic. index of mame roms
Which are you using? (PC, Steam Deck, Raspberry Pi, Android phone?) The parent ROM is the definitive, complete version
Split sets are the standard for most organized emulation libraries. They rely heavily on a parent-clone relationship. Clone ROMs Unlike console emulators (such as those
: The index distinguishes between "Parent" ROMs (the original version of a game) and "Clones" (regional variants, bootlegs, or revisions). Types of ROM Sets in the Index