This is a strange problem and I have no idea as to what is causing it. So, I'm trying to install iWork '09 on my G5 through a DVD. But whenever I put the DVD in the drive, it ejects it a few seconds later. So I tried an iLife '09 DVD and the drive read it just fine. So I assumed that the iWork DVD was bad, so I cleaned it in one of those DVD cleaning machines. The G5 still wouldn't read it. Then I tested the iWork DVD in my iBook G4 and the iBook would read it just fine. So the iBook will read the iWork DVD, and the Power Mac won't. Any ideas? Thanks.