: Ensure the ROMs are compatible with the MAME version you're using. MAME has evolved, and ROMs from one version might not work correctly or at all with another.
The invitation arrived via a dusty private message on a retro-computing forum that looked like it hadn't been updated since 1999. It was simple: “I found the Geode. It’s running hot. Bring the Reference.” MAME 2000 Reference Set - MAME 0.37b5 ROMs and ...
Look for a "MAME 0.37b5 Reference Set." This is a large collection (usually a few gigabytes) containing every single game supported by that version of MAME. It is pre-verified. You download it, unzip it, and place the files in your ROMs folder. : Ensure the ROMs are compatible with the