I was thinking of upgrading my Dad's G4 450mhz AGP 768mb RAM with DVD-ROM to a DVD-RW, I want to make sure the drive is compatible and will work with iDVD 3 and the Mac itself. On www.macsolutions.com they have DVD-RW "superdrives" Are they compatible with the G4 and with iDVD? The drive is a "PIONEER DVD-RW AO4-104 SUPERDRIVE BARE DRIVE NO SOFTWARE" Thats what it says on the webpage, please help me out, thanks! 