Okay, stupid question time. What exactly am I supposed to do with all the MAME BIOS files for the different systems? Is it just enough to have them in the roms folder like with MAME for Windows or do I need to do something else?
The only bios you need for mame is for neo-geo, it should work if the files are in a zip called neogeo.zip. Although atm I've got the bios files in each neo-geo romset.