Thanks but that didn't work either. I tried famicom - cart and nes - cart. Neither works. Again I'm not using Famicom mame roms. I'm using my hyperspin ready set which I have done for other systems in LB using mame as the emulator with no problem. In fact I don't even have to add those command in MAME emulator for other systems to work in LB example: NES, SNES, Bally, Gameboy etc..... All work using my Hyperspin Ready set roms and MAME as the emulator. SO my question is why doesn't it work for the Famicom, Super Famicom, and NEC PC Engine? Any help would be appreciative. I got Famicom Disk working in LB which is the same way I'm trying to set these up. Pulling hair out lol.