> > The name of the ROM set (the name of the ZIP archive), "puckman" or whatever. > > I tried that. I made sure the name was correct. > I get an unknown system error. > Can't tell you what I did wrong. I am not sure what wrong is.
Must've not have the official build download. Did you download from here? http://mamedev.org/
Seem like a screw up build that you have. No telling where that came from. Use the fresh one. Delete the older files. Keep the ROM's and samples though. Try again after that.
Use this command to update the mame.ini or make a new one. mame64 -cc