Compaq E500S, V300 manual Diskette Drive, CD-ROM Drive, Center hole diameter, Disc diameter

	Table 6-9
	Diskette Drive
Diskette Size	3.5 inch
Light	On system
Height	0.5 in. / 12.7 mm
Bytes per sector	512
Sectors per track
High Density	18	(1.44 MB) / 15 (1.2 MB)
Low Density	9
Tracks per side
High Density	80	(1.44 MB) / 80 (1.2 MB)
Low Density	80
Read/write heads	2
Average seek times		3 ms / 6 ms
Track-to-track (high/low)
Average (high/low)	95 ms / 174 ms
Settling time	15 ms
Latency average	100 ms

Table 6-10
CD-ROM Drive
Applicable disc	CD-ROM (Mode 1, 2, and 3)
	CD-XA ready (Mode 2, Form 1 and 2)
	CD-I ready (Mode 2, Form 1 and 2)
	CD-R (read only)
	CD Plus
	Photo CD (Single/Multi-session)
	CD-Extra
	Video CD
	CD-WO (fixed packets only)
	CD-Bridge
Center hole diameter	.59 in. / 15 mm
Disc diameter	12 cm, 8 cm
Disc thickness	1.2 mm
Track pitch	1.6 µm
Access time
Random	< 150 ms
Full stroke	< 300 ms
Cache buffer	128 KB
Data transfer rate	2400 KB/sec (150 KB/sec at 1X)
Sustained, 16X
Variable	1500 to 3600 KB/sec (10X to 24X)
Normal PIO mode 4 (single burst)	16.66 MB/sec
Start-up time	< 8 seconds
Stop time	< 4 seconds

Specifications 6-7