1 Hardware Overview 1.7 CD-RW/DVD-ROM Drive
1-16 TECRA S1 Maintenance Manual
1.7 CD-RW/DVD-ROM Drive The CD-RW/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 CD-ROM at 24x speed, and
write CD-R/RW at 8x speed.
The specifications of the CD-RW/DVD-ROM drive are listed in Table 1-5.
Table 1-5 CD-RW/DVD-ROM drive specifications
Item DVD-ROM mode CD-ROM mode CD-R/CD-RW
(Write mode)
Data transfer rate (Mbytes/s) 33.3 (U-DMA transfer mode 2)
16.7 (PIO mode 4, Multiword DMA mode 2)
Access time (ms)
Average random access
Average full stroke access
110
250
90
200
-
-
Rotational speed (RPM) 4,594 Max 5,136 Max 2,297 Max
Data buffer size (Mbytes) 2
Formats supported DVD:
DVD-ROM (DVD-5, DVD-9, DVD-10,
DVD-18), DVD-R (read)
CD:
CD-DA, CD+(E)G, CD-MIDI, CD-TEXT,
CD-ROM, CD-ROM XA, MIXED MODE
CD, CD-I, CD-I Bridge (Photo-CD,
Video-CD), Multisession CD (Photo-CD,
CD-EXTRA, Portfolio, CD-R, CD-RW),
CD-R, CD-RW
CD-DA, CD+(E)G,
CD-MIDI, CD-
TEXT, CD-ROM,
CD-ROM XA,
MIXED MODE CD,
CD-I, CD-I Bridge
(Photo-CD, Video-
CD), Multisession
CD (Photo-CD,
CD-EXTRA,
Portfolio)