Mario party 8 will let me chose the disc channel, then let me chose start on the menu, then gives me the can not read disk error. Super Mario Bro. will play for about 30 seconds, then gives me an error to eject the game and turn off the power to the console. It doesn't matter where the games is - if I start from the beginning or where we left off, it gives me the error after 30 seconds, it is not always the same place on the game. They worked for a while and now will not after trying several times. The games show no scratches. Game party and wii sports work fine. Mii channel works fine. I called nintendo and they were not much help.