HP (Hewlett-Packard) 6720R ユーザーズマニュアル

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