Compaq Presario,Presario 900 Maintenance And Service Manual page 162

Center hole diameter
Disk diameter
Disk thickness
Track pitch
Access time
Random
Full stroke
Audio output level
Cache buffer
Data transfer rate
Sustained, 16X
Sustained, 4X CD-RW
Normal PIO Mode 4 (single burst)
Startup time
Stop time
Maintenance and Service Guide
Table 6-9
CD-RW Drive
1.5 cm
12 cm, 8 cm
1.2 mm
.74 µm
< 150 ms
< 225 ms
Line-out, 0.7 Vrms
128 KB
150 KB/s
5,520 KB/s
16.6 MB/s
< 15 seconds
< 6 seconds
Specifications
.59 in
.047 in
6–11