HP (Hewlett-Packard) 6720R Laptop User Manual


 
DVD/CD-RW Combo Drive specifications
Applicable disc Read:
CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM,
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
Write:
CD-R and CD-RW
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