HP HDX18-1020US HP HDX 18 Entertainment PC - Maintenance and Service Guide - Page 99

Blu-ray ROM DVD±RW SuperMulti DL Drive specifications, System DMA specifications, Applicable disc

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Blu-ray ROM DVD±RW SuperMulti DL Drive specifications Applicable disc Access time Random Cache buffer Data transfer rate 2X BD-RAM 8X DVD 16X CD-R 16X CD-RW Read: Write: BD-ROM, BD-ROM-DL, BD-R, BD-R-DL, BD-RE, BD-RE-DL, DVD-ROM, DVD+R, DVD+R-DL, DVD+RW, DVD-R, DVD-R-DL, DVD-RW, DVD-RAM (Ver.2), CD-DA, CD-ROM (mode 1 and mode 2), CD-ROM XA (mode 2, form 1 and form 2), Photo CD (single and multiple sessions), CD Extra, CD-R, CD-RW, and CD-TEXT DVD-RAM (Ver.2), DVD+R, DVD-R, CD-R, and CD-ROM BD DVD < 230 ms < 180 ms 4.5 MB 9 MB/sec 2,400 KB/sec 2,400 KB/sec 2,400 KB/sec System DMA specifications Hardware DMA System function DMA0 Not applicable DMA1* Not applicable DMA2* Not applicable DMA3 Not applicable DMA4 Direct memory access controller DMA5* Not applicable DMA6 Not assigned DMA7 Not assigned *ExpressCard controller can use DMA 1, 2, or 5. Specifications 6-5

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Specifications
6–5
Blu-ray ROM DVD±RW SuperMulti DL Drive specifications
System DMA specifications
Applicable disc
Read:
Write:
BD-ROM, BD-ROM-DL, BD-R,
BD-R-DL, BD-RE, BD-RE-DL,
DVD-ROM, DVD+R,
DVD+R-DL, DVD+RW, DVD-R,
DVD-R-DL, DVD-RW,
DVD-RAM (Ver.2), CD-DA,
CD-ROM (mode 1 and
mode 2), CD-ROM XA
(mode 2, form 1 and form 2),
Photo CD (single and multiple
sessions), CD Extra, CD-R,
CD-RW, and CD-TEXT
DVD-RAM (Ver.2), DVD+R,
DVD-R, CD-R, and CD-ROM
Access time
BD
DVD
Random
< 230 ms
< 180 ms
Cache buffer
4.5 MB
Data transfer rate
2X BD-RAM
9 MB/sec
8X DVD
2,400 KB/sec
16X CD-R
2,400 KB/sec
16X CD-RW
2,400 KB/sec
Hardware
DMA System function
DMA0
Not applicable
DMA1*
Not applicable
DMA2*
Not applicable
DMA3
Not applicable
DMA4
Direct memory access controller
DMA5*
Not applicable
DMA6
Not assigned
DMA7
Not assigned
*ExpressCard controller can use DMA 1, 2, or 5.