Toshiba Qosmio F20 (PQF22) User Manual
Page 81
User’s Manual
4-9
Operating Basics
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If the disc is poor in quality, dirty or damaged, writing or rewriting errors
may occur.Be careful to check the disc for dirt or damage before you
use it.
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The actual number of rewrites to CD-RW, DVD-RW, DVD+RW or
DVD-RAM is affected by the quality of the disc and the way it is used.
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There are two types of DVD-R discs: authoring and general use discs.
Do not use authoring discs. Only general use discs can be written to by
a computer drive.
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You can use DVD-RAM discs that can be removed from a cartridge and
DVD-RAM discs designed without a cartridge.
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Other DVD-ROM drives for computers or other DVD players may not be
able to read DVD-R/-RW or DVD+R/+RW discs.
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Data written to a CD-R/DVD-R/DVD+R disc cannot be deleted either in
whole or in part.
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Data deleted (erased) from a CD-RW, DVD-RW, DVD+RW and
DVD-RAM disc cannot be recovered. Check the content of the disc
carefully before you delete it. If multiple drives that can write data to
discs are connected, be careful not to delete data from the wrong drive.
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In writing to a DVD-R/-RW, DVD+R/+RW or DVD-RAM disc, some disc
space is required for file management, so you may not be able to write
the full capacity of the disc.
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Since the disc is based on the DVD standard, it might be filled with
dummy data if the written data is less than about 1 GB. Even if you write
only a small amount of data, it might take time to fill in the dummy data.
DVD+R DL: (Double Layer Recordable drive only)
MITSUBISHI CHEMICAL CORPORATION
DVD-RW:
DVD Specifications for Recordable Disc for Version 1.1 or version
1.2
VICTOR COMPANY OF JAPAN.LIMITED
MITSUBISHI CHEMICAL CORPORATION
DVD+RW:
MITSUBISHI CHEMICAL CORPORATION
RICOH Co., Ltd.
DVD-RAM: (DVD Super Multi drive only)
DVD Specifications for DVD-RAM Disc for Version 2.0, Version 2.1
or Version 2.2
Matsushita Electric Industrial Co., Ltd.
Hitachi Maxell Ltd.
This drive cannot use discs that allow writing faster than 8 speed
(DVD-R, DVD+R),4 speed (DVD-RW,DVD+RW),5 speed (DVD-RAM)