Toshiba Satellite A70 - DVD-R;-RW Drive; Removable Drives

1 Hardware Overview 1.4 Removable Drives
1.4 Removable Drives
The module compartments can accommodate the following removable modules:
• DVD-R/-RW drive
• DVD-ROM drive
• CD-RW/DVD-ROM drive
• DVD+-R/+-RW drive
• DVD Super Multi ddrive
1.4.1 DVD-R/-RW Drive
The DVD-R/-RW drive (Toshiba SD-R6112) accommodates either 12cm (4.72-inch) or 8cm
(3.15-inch) CDs or DVDs.
Read speeds
DVD-ROM Maximum 8 times faster rotational speed
DVD-RAM Standard rotational speed
CD-ROM Maximum 24 times faster rotational speed
Write speeds
CD-R 4,16 times faster rotational speed
CD-RW 4 times faster rotational speed
High-Speed CD-RW 4,10 times faster rotational speed
DVD-R 1, 2 times rotational speed
DVD-RW disc 1 times rotational speed
Access Speed
Average Random Access Time DVD-ROM: 115 ms (3.3-8X)
CD-ROM: 105 ms (10.3-24X)
DVD-RAM: 170 ms (4.7GB 1X)
Average Random Seek Time DVD-ROM: 105 ms (3.3-8X)
CD-ROM: 100 ms (10.3-24X)
DVD-RAM: 120 ms (4.7GB 1X)
Average Full Stroke Access Time DVD-ROM: 195 ms (3.3-8X)
CD-ROM: 180 ms (10.3-24X)
DVD-RAM: 350 ms (4.7GB 1X)
Buffer capacity 2 Mbytes (Max)
1-10 Satellite A70 Series Maintenance Manual