Toshiba P205 manual Hardware Overview Optical Disc Devices, Dvd-Rom & Cd-Rw

1 Hardware Overview 1.4 Optical Disc Devices

1.4Optical Disc Devices

1.4.1DVD-ROM & CD-RW

The DVD-ROM and CD-RW 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, and write CD-R at 24x speed and high speed CD-RW at 10x or Ultra speed CD-RW at 24X speed.

The specifications of the DVD-ROM & CD-RW drive are listed in Table 1-2.

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)	150	130
Average random access
Data buffer size (Mbytes)	2MB
	DVD:
	DVD-VIDEO, DVD-ROM
Formats supported	CD:
	CD-DA, CD-ROM, CD-R, CD-RW, CD-ROMXA,
	Photo CD (single/multi-session), CD-EXTRA, CD-Text
Table 1-2	DVD-ROM & CD-RW drive specifications

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