CD-ROM
CD-DA
CD-ROM XA
Photo CD
CD-I
CD EXTRA
CD-R/W
Video CD
CD-TEXT
Modes 1 and 2
Audio
Mode 2, Form 1 and 2
Single and Multi Session
Mode 2, Form 1 and 2
Read Only Block Size
CD-ROM Mode 1
CD-ROM Mode 2 Form 1
CD-ROM Mode 2 Form 2
CD-DA
2048 and 2352 bytes
2048, 2328, 2336, 2340, and 2352 bytes
2328, 2336, 2340, and 2352 bytes
2352 and 2368 bytes
Writeable Block Size
CD-ROM Mode 1
CD-ROM Mode 2 Form 1
CD-ROM Mode 2 Form 2
CD-DA
2048 bytes
2048 and 2352 bytes
2352 bytes
2352 and 2368 bytes
Diameter
12 cm, 8 cm (drive must support 8 cm adapters)
Thickness
1.2 mm
Track Pitch
1.6 µm
Laser
Divergence Angle
Output Power
Type
Wave Length
53.5 d/- 1.5 degrees
0.14 mW (@ objective lens)
Semiconductor laser GaAIAs
780 nm +/- 25 nm
Access Time
Random
Full Stroke
150 ms (typical)
350 ms (typical)
Audio Output Level
Line Out
0.7 V (RMS)
Cache Buffer
1 Mbyte (minimum)
Data Transfer Rate
Sustained
150 kB/s (1X, read/write), 300 KB/s (2X,
read/write),
600 KB/s (4X, read/write), 1200 KB/s (8X, read),
Variable 1500 to 3600 KB/s (10X to 24X, read)
Compaq.com - Compaq Presario Maintenance and Service Guide - 7400 Series
http://www.compaq.com/athome/support/msgs/7400/cdspecs.html (3 of 4) [1/8/2002 3:52:21 PM]
