Forgive my ignorance, but I've never used a DVD burner before and therefore know nothing about them. I'm looking at an auction now for a Pioneer DVR-104 DVD-R/RW & DVR-103 DVD-R/RW. The seller says that the drive should be useable with the MDD PowerMacs. Is this true? I'm looking for a DVD-R drive that I can use with iDvd and Toast and all that. Any info/help appreciated. Thanks!!