The file is a specific ROM dump —a digital copy of the data stored on an Integrated Circuit (IC) chip from an original arcade circuit board. In this case, it is part of the Sega Billboard software set, specifically the data found on the second IC chip (IC2) of the board. File Size: 64.00 KB

In the latest MAME releases , such as version 0.287, this file is categorized as part of the driver. Why Is It "Exclusive"?

0ca70f80 (This unique code ensures the file is an authentic, uncorrupted copy) Parent ROM Set: segabill.zip The Role of epr-18022.ic2 in MAME

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