HP 6720R manual DVD/CD-RW Combo Drive specifications, Applicable disc Read Write

DVD/CD-RW Combo Drive specifications

Applicable disc	Read:	Write:
	CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM,	CD-R and CD-RW
	CD-ROM XA, MIXED MODE CD, CD-I, CD-I
	Bridge (Photo-CD, Video CD), Multisession CD
	(Photo-CD, CD-EXTRA, Portfolio, CD-R, CD-RW),
	CD-R, CD-RW, DVD-ROM (DVD-5, DVD-9,
	DVD-10, DVD-18), DVD-R, DVD-RW, DVD+R,
	DVD+RW, DVD-RAM
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	< 110 ms	< 130 ms
Full stroke	< 210 ms	< 225 ms
Audio output level	Line-out, 0.7 Vrms
Cache buffer	2 MB
Data transfer rate
24X CD-ROM	3,600 KB/sec
8X DVD	3,600 KB/sec
24X CD-R	3,600 KB/sec
24X CD-RW	3,600 KB/sec
Transfer mode	Multiword DMA mode 2
Startup time	< 15 seconds
Stop time	< 6 seconds

90 Chapter 6 Specifications