Hello, Got a copy of Win 7 and am trying to install a partition with bootcamp. Issue is, when I put in the install disk, the optical drive repeatedly revs up and slows down and disk utility beach balls on me. After about 2 minutes finder pops up saying the disk is blank, and disk utility only lets me eject the disk. I tested the disk on a pc and a 2011 MBP with snow leopard on it, and both read it fine. The issue is only on my Mid 2009 MBP with lion. I tested a few other DVD's in the drive which all run, and I just burnt a CD without any issues, so I think the drive is fine? I checked software update, and it says all software is up to date. My disk utility is Version 12 (346). Any help or suggestions are greatly appreciated Thanks!