Thank you…found the BIOS and loaded, no more error messages.

Is there a config file that points to which BIOS to use? I can’t seem to find anything, was wondering how Retropie knows to use that particular BIOS file.

But when trying to play any game with a .mdf file extension, system saying it’s unable to load that extension.

Looks like the .mdf are included for this emulator….anyone having issues running .mdf?