You are using a BIOS from a newer or older MAME set. Solution: Find a ROM set explicitly tagged "MAME 0.147" or "MAME 0.147 ROMs (Split Set)" . Mixing versions is the number one cause of failure.

Enjoy your perfectly emulated arcade, circa 2013.

MAME 0.147 was a significant release, boasting improved compatibility, new game support, and a slew of bug fixes that had been plaguing the community. John had been waiting for weeks to try it out, especially since rumors swirled that it could accurately emulate some of the more obscure titles that had been missing from his collection.

It was a peculiar day for John, known among his friends and fellow gamers as the "ROM whisperer." John had a unique talent for finding and organizing MAME ROMs, the digital versions of arcade games that enthusiasts like him used to play classic games on their computers. His collection was vast, but he was particularly excited about updating his MAME installation to version 0.147, the latest at the time.

: Let the sheet air dry or press it between heavy books for a smooth finish.