Compaq TC1000 manual Center hole diameter

Specifications

Table 6-7

CD-RW Drive

(For Use Only in the Docking Station or External MultiBay)

Center hole diameter	0.59 in	0.39 cm
Disk diameter		12 cm, 8 cm
Disk thickness	0.47 in	1.19 cm
Track pitch	0.74 µm
Access time
Random	< 150 ms
Full stroke	< 225 ms
Audio output level	Line-out, 0.7 Vrms
Cache buffer	128 KB
Data transfer rate
Sustained, 16X	150 KB/s
Sustained, 4X CD-RW	5,520 KB/s
Normal PIO Mode 4 (single burst)	16.6 MB/s
Startup time	< 15 seconds
Stop time	< 6 seconds

Maintenance and Service Guide 6–9