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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 Diameter12 cm, 8 cm

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Rotational Speed1060 - 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 Diameter12 cm, 8 cm

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Rotational Speed2120 - 800 rpm, quad-speed

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Disc Thickness

1.2 mm

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