> I have now got my hands on a Mario Kart game cartridge (PAL version). I first tried to play it through the SWCDX2 (run the cartridge). Then I get graphics problem in the upper screen (the one that mario is driving in). I then tried to dump the cartridge to a disk and then loaded it. The game got the same strange graphics problem as when I played the cart through the copier.
> I then downloaded Mario Kart ROM from www.cherryroms.com. I downloaded both the PAL and NTSC version of the game. Both worked completely fine (I had the PAL cartridge insterted in the SWCDX2 too ofcoz).
> So conclusion: I cannot play my PAL cart when it's on top of the SWCDX2, nor can I dump it and play it. But I can play the Mario Kart ROM I downloaded from Cherry roms. And I can also play all other DSP-games I have downloaded (10 games I think).
> So you can play the game, but you can't dump your own cart and play it.
> Quite odd. Is there someone who knows why it behaves like this?
try cleaning the cart. if the game has the same glitches when used directly in the snes, the cart is likely to be damaged.