Um, I thought disksys.rom was for Famicom Disk System games, not Super Nintendo which does not need a bios?? If you ARE trying to play Famicom Disk System games (not smc files - that's SNES) then maybe your bios is wrong. did you load your Bios file by going the recalbox's built-in web page and go to the bios section and drag them in that way? When you load a bios thru the web interface is runs a hash check to verify you have a working bios file. As far a resolution goes, recalbox drops the TV resolution to 720p during retroarch emulation. I have never seen a 1080p tv that didn't support 720p as well. Eric
