: The string "Epr-18022.ic2" seems to relate to a specific game or data file. Try to identify which game it corresponds to.
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While not a "game" itself, epr-18022.ic2 is a mandatory "behind-the-scenes" component for Sega arcade enthusiasts. Its inclusion in your ROM folder is the difference between a functional emulation and a "missing files" error screen. mame/src/mame/sega/segabill.cpp at master - GitHub : The string "Epr-18022
Without this small 64KB file, many mid-90s Sega titles—most notably Sonic the Fighters and certain games running on the ST-V (Sega Titan Video) or Model 2 hardware—will fail to boot. Why You Need Epr-18022.ic2 Epr-18022.ic2 Mame Download