Thanks for the help. Got Atari 2600 to work now. I'm trying to run a CPS1 1941 rom and did the necessary command lines. It's still rebooting to main snes menu. Am I missing something? I am not understanding what files when u stated earlier that I need a bios file for it.
You using MAME 2003, and /bin/mame2003 after adding it as an archive?