Hi I'm having a similar problem. I own a few Gamecube games including Mario Kart DD and Luigi's Mansion and about 7 Wii games that include Mario Kart Wii, Super Mario Galaxy, Mario Party 8, Wii Sports and Super Paper Mario. The problem I am receiving is only with Mario Kart Wii and Mario Party 8 however. I put the disc into the Wii, click on the Disc Channel and the cameo appears and everything seems fine. However, once I click on the start button in the disc channel after the caution screen for the Wii remotes comes up the screen turns black and says, "Disc Cannot Be Read." There are hardly/very very tiny scratches on either discs so that cannot be the problem and I'm guessing it's not my Wii console since other Wii and Gamecube games work fine. I have updated my Wii to the latest version also. Any help is appreciated.