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DVD-ROM Drive

The Power Mac G4 has an internal 8x-speed DVD-ROM drive. It supports the following disc formats:

• DVD-RAM: bare one- or two sided disc, reading 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, Photo CD, CD-RW, CD-R, CD-Extra

• CD-I (Mode 2, Forms 1 and 2), CD-I Ready, CD-I Bridge

• Video CD

The DVD-ROM drive is an ATAPI drive and is connected as device 0 in an ATA Device 0/1 configuration on the ATA-3 channel of the main logic board. To provide improved signal quality, the ATA bus has an 80-conductor cable with ground lines separating the signals.