What are these “bios” files? These “bios” files enable MAME to emulate various kinds of game hardware. Run “ExtraMAME“. It displays two lists, “supported” and “available”. The supported list displays the names of games that are compatible with M.A.M.E. The available list displays the names of games that are actually present on your system. After a fresh install, the available list should be empty. You’ll also need to download special M.A.M.E. game files. These files are named “bios” files and “rom” files.
Note: 21 days trial version.