Toshiba TECRA S1 manual DVD-ROM Drive Hardware Overview

1.4 DVD-ROM Drive 1 Hardware Overview

1.4DVD-ROM Drive

The DVD-ROM drive accepts 12-cm (4.72-inch) and 8-cm (3.15-inch) discs. The drive provides high-speed data transfer, playing back a DVD at up to 8x speed and reading up to 10,820 Kbytes per second from DVD-ROM and 3,600 Kbytes per second from CD-ROM.

The DVD-ROM drive is shown in Figure 1-5 and its specifications are listed in Table 1-2.

Figure 1-5 DVD-ROM drive

Table 1-2 DVD-ROM drive specifications

Item	DVD-ROM mode	CD-ROM mode
Data transfer rate (Mbytes/s)	33.3 (U-DMA transfer mode 2)
Access time (ms)	110 (Typ.)	85 (Typ.)
Average random access (ms)
	200 (Typ.)	180 (Typ.)
Average full stroke access (ms)
Rotational speed (RPM)	4,670 Max	5,100Max
Data buffer size (Kbytes)	256
Formats supported	DVD-ROM, DVD-R (Read)
	CD-DA, CD+(E)G, CD-MIDI, CD-TEXT
	CD-ROM, CD-ROM XA, CD-I
	CD-I Bridge (Photo-CD, Video-CD)
	Multisession CD (Photo-CD, CD-EXTRA, CD-R,
	CD-RW)
	CD-R (Read), CD-RW (Read)

TECRA S1 Maintenance Manual 1-13