Since I replaced my Dad's G4 DVD-ROM drive with a DVD-RW drive, I wanted to put the drive in my G3 MiniTower, well I did. It works fine as a CD drive but when I insert a DVD it takes time appearing on the desktop. Then I notice I don't have a DVD Player Application on my MiniTower so I drag and drop one from the Mac G4 and I double click and a diolog box pops up saying "Cannot run on this machine configiration..." or something similar to that. Do I need a DVD encoder or something? I have an Apple AV in and out card that was built into the machine when I bought it. Does it act as a DVD decoder? Any help help would be great