HP nx9000 DVD/CD-RW Drive Center Hole Diameter, Disk Diameter, Audio Output Level, Cache Buffer

QuickSpecs

HP Compaq nx9000 Business Notebook

Technical Specifications

DVD/CD-RW Drive	Center Hole Diameter	15 mm
	Disk Diameter	12 cm, 8 cm
	Disk Thickness	1.2 mm
	Track Pitch	1.6 µm
	Access Times	Random CD	< 110 ms
	(typical reads, including	Full-Stroke CD	< 210 ms
	settling)
		Random DVD	< 130 ms
		Full-Stroke DVD	< 225 ms
	Audio Output Level	0.7 – 0.9 Vrms
	Cache Buffer	2 Mbytes (minimum)
	Data Transfer Rate	CD-R (24X)	3600 KB/s (150 KB/s at 1X CD rate)
	(typical, including settling)	CD-RW (10X)	1200 KB/s (150 KB/s at 1X CD rate)
		CD-ROM (24X)	3600 KB/s (150 KB/s at 1X CD rate)
		DVD (8X)	10,800 KB/s (1352 KB/s at 1X DVD rate)
		Normal PIO Mode 4	16.6 MB/s
		(single burst)
	Start-up Time	Single	< 9 seconds (typical)
		Multi-Session	< 30 seconds (typical)
	Stop Time	< 6 seconds (typical)
DVD-ROM Drive	Center Hole Diameter	0.59 in (1.5 cm)
	Disk Diameter	12 cm/8 cm
	Disk Thickness	1.2 mm
	Track Pitch	0.74 µm (DVD)/1.6 µm (CD)
	Access Times	Random (typical)	< 125 ms DVD Media
	(typical reads, including	Full-Stroke (typical)	< 225 ms DVD Media
	settling)
		Random (typical)	< 100 ms CD Media
		Full-Stroke (typical)	< 175 ms CD Media
	Cache Buffer	512 KB/s (minimum)
	Data Transfer Rate	Max 24X CD	3600 KB/s (150 KB/s at 1X CD rate)
	(typical, including settling)	Max 8X DVD	10,800 KB/s (1352 KB/s at 1X DVD rate)
	Start-up Time	< 12 seconds Typical
	Stop Time	< 3 seconds Typical

DA - 11598 Worldwide — Version 11 — December 8, 2004 Page 15