Clarification: My Superdrive is located inside my 733mhz G4 tower (QuickSilver). My TiBook is a "lowly" 667mhz DVI model (couldn't pass up the incredible deal at the local university so I upgraded from an iBook to the TiBook). On my QuickSilver, the last completely full (58 minutes of video) DVD-R that I burned (2x) in iDVD2 took about 2.5 to 3 hours. 2 to 2.5 hours to process/compress and .5 hours to actually burn. In the same computer, a 1x burn would take an additional .5 hour. Mark