HP nw8440, nx8420 manual DVD-ROM Drive, Applicable disc, Cache buffer

Specifications

	Table 6-8
	DVD-ROM Drive
Applicable disc	DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18)
	CD-ROM (Mode 1 and 2)
	CD Digital Audio
	CD-XA ready (Mode 2, Form 1 and 2)
	CD-I ready (Mode 2, Form 1 and 2)
	CD-R
	CD-RW
	Photo CD (single and multisession)
	CD-Bridge
Center hole diameter	1.5 cm (0.59 in)
Disc diameter
Standard disc	12 cm (4.72 in)
Mini disc	8 cm (3.15 in)
Disc thickness	1.2 mm (0.047 in)
Track pitch	0.74 µm
Access time	CD	DVD
Random	< 100 ms	< 125 ms
Full stroke	< 175 ms	< 225 ms
Audio output level	Line-out, 0.7 Vrms
Cache buffer	512 MB
Data transfer rate
CD-R (24X)	3,600 KB/s (150 KB/s at 1X CD rate)
CD-RW (10X)	1,500 KB/s (150 KB/s at 1X CD rate)
CD-ROM (24X)	3,600 KB/s (150 KB/s at 1X CD rate)
DVD (8X)	10,800 KB/s (1,352 KB/s at 1X DVD rate)
Multiword DMA mode 2	16.6 MB/s
Startup time	< 15 seconds
Stop time	< 6 seconds

Maintenance and Service Guide 6–11