Toshiba Dynabook Vx/4, Maintenance Manual

Page: 36 / 284

1.6 DVD Dual (Double Layer) 1 Hardware Overview
Satellite M40/M45 TECRA A4 dynabook Vx/4 Maintenance Manual 22
1.6 DVD Dual (Double Layer)
The DVD-Dual 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 CD-RW at 4x speed and high or ultra speed at 24x and DVD-R/+R at 8x
speed and DVD+R(Double Layer) at 2.4x speed and DVD-RW at 4x speed and DVD+RW at
2.4x speed.
The specifications of the DVD-Dual(Double Layer) drive are listed in Table 1-4.
Table 1- 4 DVD-Dual(Double Layer) drive specifications
Item DVD-ROM mode CD-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
180 150
Average full stroke
access
Data buffer size
(Mbytes)
2MB
DVD:
DVD-ROM,DVD-R ver2.00 for General (Read/Write), DVD-RW
Ver.1.0&1.1&1.2(Read/Write),DVD+R(Read/Write),DVD+RW(Read/Wr
ite),DVD+R(Double Layer).
CD:
Formats supported
KODAK Photo CD Single and Multi-Session,CD-Extra(CD+),Mixed
CD,Video CD, CD-R discs (Read/Write), CD-RW , CD test data.