check the inner ring on the disk. There will probably be a crack there. For the last 6 years EA has been using disks that crack from the inside with NCAA. I believe it's their way of increasing sales, once the disk breaks they think someone will go and buy a new one. I've found that not using the case that NCAA comes in helps, but you will still get some cracking to a degree. I haven't found this to happen with any other games I play or own - Only NCAA, and it happens every year.