1 Hardware Overview 1.4 Optical Device Drives
1-10
[CONFIDENTIAL]
Detroit 20 /Detroit 20E Series Maintenance Manual
1.4.2 DVD Super Multi drive supporting ±R Double Layer
The DVD Super Multi 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, read CD-ROM at 24x speed, write CD-R at 24x
speed, Multi speed CD-RW at 4x speed or High speed CD-RW at 10x speed or Ultra speed CD-
RW at 16x speed, DVD-R at 8x speed, DVD-RW at 4x speed, DVD+R at 8x speed, DVD+RW at
4x speed, DVD-RAM at 5x speed, DVD+R DL at 2.4x speed, and DVD-R DL at 2x speed.
The specifications of the DVD Super Multi Double Layer 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) 2MB
Formats supported
DVD:
DVD-VIDEO, DVD-ROM, DVD-R (3.9G, 4.7G), DVD-RW
(Ver.1.1), DVD-RAM, DVD+R, DVD+RW, DVD+R DL,
DVD-R DL
CD:
CD-DA, CD-ROM, CD-R, CD-RW, CD-ROMXA,
PhotoCD (muitiSession), Video CD, CD-Extra (CD+), CD-Text
Table 1-3 DVD Super Multi Double Layer drive specifications
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