CD-ROM Mode 0
CD-ROM Mode 1
CD-ROM Mode 2
DVD
2352 bytes
2352, 2340,2336, 2048 bytes
2352,2340, 2336, 2048 bytes
2048 bytes
Center Hole
15 mm diameter
Disc Diameter
12 cm, 8 cm
Thickness
1.2 mm
Track Pitch
1.6 µm (CD-ROM); 0.74 µm (DVD)
Access Time
Random
Full Stroke
DVD:
< 180 ms typical
< 300 ms
CD:
< 120 ms
< 200 ms
Audio Output Level
Line Out
Headphone
1.0 V (RMS) at 47 kW
0.7 V (RMS) at 32 W
Cache Buffer
512 Kb
Sustained Data Transfer Rate
150 KB/sec (1x CD-ROM mode)
1200-3600 KB/sec (32× CAV
CD-ROM mode)
2705-8115 KB/sec (6x CAV DVD
mode)
Interface Cable Length (Max)
18 in
Typical Startup Time
< 10 sec
Typical Stop Time
< 2 sec
Compaq.com - Compaq Presario Maintenance and Service Guide - 7400 Series
http://www.compaq.com/athome/support/msgs/7400/dvdspcs.html (2 of 2) [1/8/2002 3:52:21 PM]
