I have a 2.16 GHz C2D Macbook that currently has OS 10.5.8 on it (it does not have AppleCare). Yesterday, I eagerly went to Best Buy to purchase my copy of Snow Leopard and attempted to install it when I got home. Popped in the disk and began the installation process. I waited for the installation to be completed. The progress bar got to 45 minutes remaining and the screen stated that the computer needed to restart and installation would continue. The computer restarts and I hear the disk spinning up, the it gets quiet and the disk is ejected. The computer continues to restart into Leopard. I try this 3 times, all with the same result. I try to boot from the disk by pressing "C" during restart, no dice, the disk is ejected. I tried making the SL disk the startup disk, same situation. Frustrated I call Apple last night and they come to the determination that it sounds like a bad disk. I am informed I should go to Best Buy and exchange the disk. This morning I wake up and drive to another Best Buy, closer to my house and exchange the disk. I drive back to my apartment and try to install again. SAME THING HAPPENS! I call back up Apple and go through the install process with their 2nd tier support, same thing happens. They look at my installer log and tell me it looks like a faulty disk again. I am informed to try to exchange the disk again. I go to another Best Buy and pick another copy up. Come home and try it again, same issue. I am so frustrated with this whole situation. I am not sure if I should restore my MacBook with the factory disks (Tiger) and try again. I misplaced my Leopard disk in a move. The support person e-mailed me back, the engineers think it may be an issue with my SuperDrive. This is the first problem I have ever had with my SuperDrive. It works for any of my other disks, I just tried a DVD move with no problems. This is really pixxing me off. It looks like I will have a nice $29.00 coaster!