Toshiba Satellite R20 User Manual page 54

DVDs
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DVD-R and DVD+R discs can be written only once. The recorded data
cannot be erased or changed.
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DVD-RW, DVD+RW and DVD-RAM discs can be recorded more than
once.
Formats
The drives support the following formats.
DVD-ROM drive
The drive supports the formats CD-ROM, DVD-ROM, DVD-Video, CD-DA,
CD-Text, Photo CD
CD-ROM XA Mode 2 (Form1, Form2), Enhanced CD (CD-EXTRA) and
Addressing Method 2.
DVD-ROM&CD-R/RW drive
The drive supports the formats in addition to the DVD-ROM drive, and CD-
R, CD-RW.
DVD Super Multi drive Double Layer
The drive supports the formats in addition to the DVD-ROM&CD-R/RW
drive, and DVD-R, DVD-RW, DVD+R, DVD+RW, DVD-RAM, DVD-R DL
(Format1), DVD+R DL.
Some types and formats of DVD-R DL and DVD+R DL discs may be
unreadable.
DVD-ROM drive
The full-size DVD-ROM drive module lets you run either 12 cm (4.72") or 8
cm (3.15") CD/DVDs without using an adaptor.
The read speed is slower at the center of a disc and faster at the outer
edge.
User's Manual
TM
(single/multi-session), CD-ROM Mode 1, Mode 2,
DVD read
CD read
8 speed (maximum)
24 speed (maximum)
The Grand Tour
2-15