Compaq Deskpro 2000 Personal Computer User Manual


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Compaq Deskpro 2000 Series of Personal Computers 8-11
Table 8-11
PD-CD Drive
4X 8X
Compaq Spare Part Number
184691-201 185951-001
Disc
Application Disc
CD-ROM
CD-XA
CD-I
CD-I Ready
Photo CD
CD-WO
Mode 1 & 2, CD-DA
Mode 2, Form 1 & 2
Mode 2, Form 1 & 2
CD-Bridge
Single & Multi session
Fixed and Variable packets
Mode 1 & 2, CD-DA
Mode 2, Form 1 & 2
Mode 2, Form 1 & 2
CD-Bridge
Single & Multi session
Fixed and Variable packets
Capacity
CD-ROM Mode 1
CD-ROM Mode 2
PD
550 MB (12 cm)
640 MB (12cm), 180 MB (8 cm)
650 MB, ZCAV
550 MB (12 cm)
640 MB (12cm), 180 MB (8 cm)
650 MB, ZCAV
Diameter 12 cm, 8 cm (CD-ROM only) 12 cm, 8 cm (CD-ROM only
Thickness 1.2 mm 1.2 mm
Track Pitch 1.6 ìm (CD) 1.2 ìm (PD) 1.6 ìm (CD) 1.2 ìm (PD)
Laser
Output Power 13.5 mW +/- 2.0 mW 13.5 mW +/- 2.0 mW
Type Semiconductor Laser GaA1As Semiconductor Laser GaA1As
Wave Length 790 +/- 25 nm 790 +/- 25 nm
Access Time
Random
Full Stroke
< 240-ms
< 350-ms (PD mode)
< 150 ms
< 350 ms (PD mode)
Cache/Buffer 256 Kbytes 512 Kbytes
Data Transfer Rate
CD
PD
600 Kb/sec
500-1100 Kb/sec
1200 Kb/sec
500-1100 Kb/sec
Error Rates
Soft error
Hard error
Seek error
10
-9
10
-12
10
-6
10
-9
10
-12
10
-6
Continued
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