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Compaq Deskpro EP Series of Personal Computers 6-7
6.2.3 CD-ROM Drives
24X Max 32X Max
Applicable Disc
CD-ROM mode 1, mode 2
Mixed mode (audio and data
combined)
CD-DA
CDi ready
CD-XA ready
Photo CD (single and multi-
session)
CD-ROM mode1, mode 2
Mixed mode (audio and data
combined)
CD-DA
CDi ready
CD-XA ready
Photo CD (single and multi-
session)
Compaq Spare Part
Number
166869-001 327659-001
Disc Diameter
12 cm, 8 cm 12 cm, 8 cm
Capacity
540 MB (Mode 1, 12 cm)
650 MB (Mode 2, 12 cm)
180 MB (8 cm)
540 MB (Mode 1, 12 cm)
650 MB (Mode 2, 12 cm)
Center Hole Diameter
15 mm 15 mm
Disc Thickness
1.2 mm 1.2 mm
Track Pitch
1.6 µm 1.6 um
Laser
Beam Divergence
Output Power
Type
Wave Length
53.5 degrees +/- 1.5 degrees
0.14 mW
Semiconductor laser GaAIAs
780 nm +/- 25 nm
53.5 degrees +/- 1.5 degrees
0.14 mW
Semiconductor laser GaAIAs
780 nm +/- 25 nm
Access Time
Random
Full Stroke
85 ms
200 ms
<100 ms
<150 ms
Audio Output Level
0.7 Vrms (typical) 0.7 Vrms (typical)
Cache Buffer
128 KB 128 KB
Data Transfer Rate
Sustained
Burst
1500 to 3600 KB/sec
4.0 MB/sec
2100 to 4800 KB/sec
16 MB/sec
Continued