HP dx7300 Table, Optical Drive Specifications

System Overview

Table 2-11

Optical Drive Specifications

Parameter	48x CD-ROM	48/32/48x CD-RW Drive
Interface Type	SATA [1]	SATA [1]
Media Type (reading)	Mode 1,2, Mixed Mode, CD-DA,	Mode 1,2, Mixed Mode, CD-DA,
	Photo CD, Cdi, CD-XA	Photo CD, Cdi, CD-XA
Media Type (writing)	N/a	CD-R, CD-RW
Transfer Rate (Reads)	4.8 Kb/s (max sustained)	CD-ROM, 4.8 Kb/s;
		CD-ROM/CD-R, 1.5-6 Kb/s
Transfer Rate (Writes):	N/a	CD-R, 2.4 Kbps (sustained);
		CD-RW, 1.5 Kbps (sustained);
Capacity:
Mode 1, 12 cm	550 MB	540 MB
Mode 2, 12 cm	640 MB	650/700 MB
8 cm	180 MB	180 MB
Center Hole Diameter	15 mm	15 mm
Disc Diameter	8/12 cm	8/12 cm
Disc Thickness	1.2 mm	1.2 mm
Track Pitch	1.6 um	1.6 um
Laser
Beam Divergence	+/- 1.5 °	53.5 + 1.5°
Output Power	0.14 mW	53.6 0.14 mW
Type	GaAs	GaAs
Wave Length	790 +/- 25 nm	790 +/- 25 nm
Average Access Time:
Random	<100 ms	<125 ms
Full Stroke	<150 ms	<210 ms
Audio Output Level	0.7 Vrms	0.7 Vrms
Cache Buffer	128 KB	2 MB

NOTE:

[1] IDE interface on USDT models (through SATA bridge)

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