The optical drives in the Power Mac G4 (QuickSilver) and Power Mac G4 (QuickSilver2002) computers do not use BURN-proof technology. Apple does not believe that there is a significant issue with buffer underrun in any Apple drives. BURN-proof is a technology developed by Sanyo that allows compact disc recording to automatically stop in the event of an unplanned interruption, and then to resume recording. BURN-Proof is a registered trademark of Sanyo.
Apple's systems are designed to virtually eliminate buffer underrun during the creation of CD-R and CD-RW discs. Buffer underrun occurs when the source volume cannot keep up with the target drive. In Apple computers, the source is always a hard drive and the target is a CD-RW, Combo, or Superdrive. Hard drives used in Apple computers have read rates that are always faster than optical drive writing rates.