Dvd±Rw And Cd-Rw Supermulti Double-Layer Combo Drive Specifications; System Dma Specifications, Amd - HP Dv7-2040us - Pavilion Entertainment - Core 2 Quad GHz Maintenance And Service Manual

DVD±RW and CD-RW SuperMulti Double-Layer Combo Drive specifications
Applicable disc
Access time
Random
Cache buffer
Data transfer rate
24X CD-ROM
8X DVD
24X CD-R
16X CD-RW
8X DVD+R
4X DVD+RW
8X DVD-R
4X DVD-RW
2.4X DVD+R(9)
5X DVD-RAM
Transfer mode

System DMA specifications, AMD

Hardware DMA
DMA4
Maintenance and Service Guide
Read:
CD-DA, CD+(E)G, CD-MIDI,
CDTEXT, CD-ROM, CD-ROM
XA, MIXED MODE CD, CD-I,
CD-I Bridge (Photo-CD, Video
CD), Multisession CD
(Photo-CD, CD-EXTRA,
Portfolio, CDR, 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
CD
< 175 ms
2 MB
3,600 KB/sec
10,800 KB/sec
3,600 KB/sec
2,400 KB/sec
10,800 KB/sec
5,400 KB/sec
10,800 KB/sec
5,400 KB/sec
2,700 KB/sec
6,750 KB/sec
Multiword DMA Mode
System function
Direct memory access controller
Specifications
Write:
CD-R and CD-RW
DVD+R, DVD+RW, DVD-R,
DVD-RW, DVD-RAM
DVD
< 230 ms
6–5