Toshiba TECRA S1 1.4 DVD-ROM Drive

1.4 DVD-ROM Drive 1 Hardware Overview
TECRA S1 Maintenance Manual 1-13
1.4 DVD-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)
Average random access (ms)
Average full stroke access (ms)
110 (Typ.)
200 (Typ.)
85 (Typ.)
180 (Typ.)
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)