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Chapter 8.5 CD-ROM Drive Specifications
Table 8-11. Dual-Speed CD-ROM Drive Specifications
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Applicable Disc CD-ROM mode 1, mode 2
CD-Digital Audio
CD-XA mode 2 (Form 1, Form 2)
Photo CD (signal/multisession)
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Center Hole Diameter 15 mm
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Disc Diameter 12 cm, 8 cm
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Rotational Speed 1060 - 400 rpm, double speed
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Disc Thickness 1.2 mm
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Track Pitch 1.8 um
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Laser:
Beam Divergence 10 (vertical)/36 (horizontal) degrees
Output Power 0.7 to 2.5 mw
Type Ellipse
Wave Length 780 nm +15/- 10
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Access time:
Random 350 ms
Full Stroke 700 ms
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Audio output level:
Line Out 0.85 mV rms
Headphone None
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Cache buffer 64 KB
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Data transfer rate:
Sustained 300 KB/sec
Asynchronous 13.5 MB/sec
Startup Time 6.5 seconds typical
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Table 8-12. Quad-Speed CD-ROM Drive Specifications
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Applicable Disc CD-ROM mode 1, mode 2
CD-Digital Audio
CD-XA mode 2 (Form 1, Form 2)
Photo CD (signal/multisession)
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Center Hole Diameter 15 mm
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Disc Diameter 12 cm, 8 cm
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Rotational Speed 2120 - 800 rpm, quad-speed
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Disc Thickness 1.2 mm
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