What are you running? (RetroPie, Batocera, EmuELEC?)
Based on documentation from emulation community sources and the MAME development wiki, here are the essential BIOS files you should have in your ROMs folder to ensure compatibility with most systems emulated by MAME 0.78: mame 078 bios pack new
: Required for Capcom ZN-2 hardware (e.g., Star Gladiator 2). konamigx.zip : Needed for various Konami titles. pgm.zip : Required for PolyGame Master titles. Where to Place the Files What are you running
It acts as the bridge between the emulator and the game ROM. What are you running? (RetroPie
Place your BIOS .zip files directly into the same directory where your MAME 0.78 game ROMs are stored (e.g., /home/pi/RetroPie/roms/mame-libretro/ ). MAME naturally looks for system files in the same folder as the game launching it.