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TITLE
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TOPIC
This article documents the size and shape of the disc that can be used in the CD-ROM and DVD-ROM drives in various Macintosh computers.
DISCUSSION
- iMac (Slot loading)
- iMac (Summer 2000) See Note 1
- Power Mac G4 Cube
- PowerBook G4
Drive Mechanisms
Many unusually sized and shaped optical media are available. The drive mechanism in your computer determines whether it can accept discs of a nonstandard size and shape. The table below provides a summary.
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| Slot loading |
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| Slotted tray |
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| Flat carrier tray |
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Some of the computers that use a slot-loading CD-ROM or DVD-ROM drive mechanism include:
Power Mac G4 (AGP Graphics) computers have been manufactured with two different drive mechanisms: slotted tray and flat carrier tray. For more information on identifying the drive in your Power Mac G4 (AGP Graphics) computer, please see article 31161: " Power Mac G4 (AGP Graphics): DVD-RAM Drive Differences "
Standard size and shape disc
The 77mm and 120 mm round discs are the only size and shape that work with slot loading or slotted tray CD-ROM and DVD-ROM drives. See Figures 1 and 2.
Figure 1 120 mm disc
Figure 2 77 mm round disc
Nonstandard size and shape discs
Discs of the following sizes and shapes work only with drives that employ a flat carrier tray (such as certain Power Mac G4 (AGP Graphics) computers. The discs do not work with slot loading CD-ROM or DVD-ROM drives. See Figure 3.
Figure 3 Nonstandard disc shapes
Warning: Inserting a nonstandard sized or shaped disc into a drive that is not designed to accommodate it may damage the drive.
Notes:
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1. The parenthetical product description (Summer 2000) refers to the summer of the Northern Hemisphere.