A complete reference set typically includes three distinct types of data:
When sourcing or auditing a MAME 2003 Reference Set, you will encounter specific structures that dictate how the games are organized: Full Non-Merged vs. Split vs. Merged Sets MAME 2003 Reference Set - MAME 0.078 ROMs- CHDs...
Because the 0.078 specification is frozen, your ROM set will never "break" due to an emulator update. Once configured, it works forever. Understanding ROMs vs. CHDs A complete reference set typically includes three distinct
: The emulator can't find the CHD file. Double-check that the CHD is in a subfolder with the exact same name as the game's .zip , and that the CHD file itself is named correctly (e.g., game.chd inside the game/ folder). game.chd inside the game/ folder).