Combo Drive - Toshiba Satellite P20-25 Series Maintenance Manual

1.4 Removable Drives

1.4.5 Combo Drive

The CD-RW/DVD-ROM combo drive (Toshiba SD-R2412 or TEAC DW-224E-85) is
capable of driving either 12cm (4.72-inch) or 8cm (3.15-inch) DVDs and CDs without using
an adaptor.
Read speeds
DVD-ROM
DVD-RAM
CD-ROM
Write speeds
CD-R
CD-RW
High-Speed CD-RW
Access Speed
Average Random Access Time
Average Random Seek Time
Average Full Stroke Access Time
Buffer capacity
Supported formats
Applicable CD
Write Formats:
Applicable CD
Write Disc:
Applicable CD
Read Disc:
DVD
Satellite P20-25 Series Maintenance Manual
Maximum 8 times faster rotational speed
Standard rotational speed
Maximum 24 times faster rotational speed
4,8,16,24 times faster rotational speed
4 times faster rotational speed
4,10 times faster rotational speed
DVD:
CD:
DVD-RAM: 170 ms*
DVD:
CD:
DVD-RAM: 130 ms typ*
DVD:
CD:
DVD-RAM: 300 ms*
2 Mbytes (Max)
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)]
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
DVD-ROM [DVD-5, DVD-9, DVD-10, DVD-18]
DVD-R
DVD-RW
DVD-RAM
1 Hardware Overview
100 ms typ (Toshiba SD-R2412)
110 ms typ (TEAC DW-224E-85)
90 ms typ (10.3-24X)
85 ms typ*
80 ms typ (10.3-24X)*
170 ms typ*
160 ms typ (10.3-24X)*
*
Toshiba SD-R2412
1-13