We ran a post a little while back saying that some of the Super Smash Bros. Brawl discs may have a problem when playing and were prone to skipping. Well, it's just been revealed that upcoming Mario Kart Wii discs may be prone to the same problems. What is still up in the air is if the problem exists with the discs or faulty (dirty) laser readers. Either way, you'd hate to have a game pause midway through an online MK tournament. So make sure you do what you can and keep the areas around the Wii as clean as possible.