As an option, the Power Mac G4 computer has an internal 2x-speed DVD-RAM drive in place of the DVD-ROM drive. The DVD-RAM drive supports the following disc formats.
Reading and writing:
DVD-RAM media in Type 1 cartridge, one- or two-sided
DVD-RAM media in Type 2 catridge, one sided
Reading only:
DVD-RAM bare one-sided disc, reading only
DVD-R (3.9 GB, disc-at-once only)
DVD-ROM (One- or two-layer, one- or two-sided)
CD-ROM (Modes 1 and 2)
CD-ROM XA (Mode 2, Forms 1 and 2)
CD-Audio (CD-DA data through IDE bus)
Photo CD (single and multiple sessions)
CD-RW
CD-R (fixed and variable packets)
CD-I (Mode 2, Forms 1 and 2), CD-I Ready, CD-I Bridge