But what I'm wondering is, why do the BIOS ROMs have a bad checksum, if it's a perfect copy from the ROM chip?
I've seen some BIOSes in the GoodSNES list, such as the Tristar, SWCDX, Super Pro Fighter etc. If it's on the list, they must have a good checksum, so why doesn't yours have it? That's the part I don't get.
mikael