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1 Hardware Overview 1.4 Optical device Drives
1-10
[CONFIDENTIAL]
Satellite M50 Series Maintenance Manual
1.4.2 DVD-ROM
The DVD-ROM drive accepts 12-cm (4.72-inch) and 8-cm (3.15-inch) discs. At maximum, the
drive can play back a DVD at 8x speed, and read CD-ROM at 24x speed.
The specifications of the DVD-ROM drive are listed in Table 1-3
Item DVD-ROM mode CD-ROM mode
Data transfer rate (Mbytes/s)
33.3 (U-DMA transfer mode 2)
16.6 (PIO mode 4, Multiword DMA mode 2)
Access time (ms)
Average random access
180 150
Data buffer size (Mbytes) 256 KB
Formats supported
DVD:
DVD-VIDEO, DVD-ROM, DVD-R (4.7G), DVD-RW
(Ver.1.1), DVD-RAM, DVD+R, DVD+RW.
CD:
CD-DA, CD-ROM, CD-R, CD-RW, CD-ROMXA,
PhotoCD (multi-session), Video CD, CD-Extra (CD+), CD-Text
Table 1-3 DVD-ROM drive specifications
.