I am currently running Mamewah and the most current version of Mame. Most of the Roms work fine, but for some the DOS box appears and the Rom doesn't work. I understand that this means either that the Romset is bad or missing. I downloaded the Rom off many different sites with the same outcome. I checked the mame games list and it says the game works. The games this happens to me on are Magicdrop 3 and Street Fighter II Champion Ed. I tried Magicdrop 1 and 2 and neither work. Other versions of street fighter 2 haven't worked, but street fighter alpha 3 works fine. Anyone know what I need to do to make these Roms work?
Thanks for reading