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1.4 DVD Super Multi (+-R Double Layer))
1 Hardware Overview
Qosmio F40/F45 Maintenance Manual 25
1.5 HD DVD-ROM
The HD 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, read HD DVD ROM at 1x speed, CD-
ROM at 24x speed, and write CD-R at 16x speed, CD-RW at 4x speed, US CD-RW at 10x
speed, High Speed CD-RW at 10x speed, DVD-R at 4x speed, DVD-RW at 4x speed,
DVD+R at 4x speed, DVD+R (Double Layer) at 2.4x speed, DVD-R (Double Layer) at 2x
speed, DVD+RW at 4x speed and DVD-RAM at 3x speed.
The specifications of the HD DVD-ROM drive are listed in Table 1-3.
Table 1-3 HD DVD-ROM Drive Specifications
Item HD DVD-ROM Mode DVD-ROM Mode
33.3 (U-DMA transfer mode 2)
Data Transfer Rate
(Mbytes/s)
16.7 (PIO mode 4, Multiword DMA mode 2)
Access Time (ms)
Average Random Access
330 160
Data Buffer Size (Mbytes)
8,126KB
DVD:
DVD-VIDEO, DVD-ROM, DVD-R, DVD-RW, DVD-RAM,
DVD+-R, DVD+-R (Double Layer), DVD+RW, HD DVD-ROM
CD:
Formats Supported
CD-DA, CD-ROM, CD-R, CD-RW, CD-ROM XA, Photo CD (Multi-
Session), HS CD-RW,US CD-RW, Video CD, CD-Extra (CD+),
CD-Text, CD-MIDI, CD-I, CD-I Bridge.