Unlike modern PC software that encourages users to always upgrade to the latest build, arcade emulation treats software versions differently. In MAME, each specific version of the emulator requires a matching "romset"—a collection of game data files dumped from physical arcade printed circuit boards (PCBs)—that matches the exact file structures, names, and dumps expected by that version's source code.
subfolder) for sounds that could not be synthesized digitally at the time of the 0.139 release [2]. 3. File Management and Format mame 0.139 romset
