Toshiba Satellite C640 - Manual (Page 81)

User’s Manual 4-12
Satellite C600/C640/C645/C600D/C640D/C645D, Satellite Pro C600/C640/C600D/C640D
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If the disc is poor in quality, or is dirty or damaged, writing or rewriting
errors may be noted - ensure that you check all discs for dirt or damage
before you use them.
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The actual number of rewrites to CD-RW, DVD-RW, DVD+RW or
DVD-RAM media will be affected by the quality of the disc itself and the
way in which it is used.
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There are two types of DVD-R media available, authoring discs and
general use discs. Do not attempt to use authoring discs as only
general use discs can be written to by a computer drive.
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You can use both DVD-RAM discs that can be removed from a cartridge
and DVD-RAM discs designed without a cartridge.
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You may find that other computer DVD-ROM drives or other DVD
players may not be able to read DVD-R, DVD-R (Dual Layer), DVD-RW,
DVD+R, DVD+R (Double Layer) or DVD+RW discs.
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Data written to a CD-R, DVD-R, DVD-R (Dual Layer), DVD+R or
DVD+R (Double Layer) discs cannot be deleted either in whole or in
part.
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Data deleted/erased from a CD-RW, DVD-RW, DVD+RW or DVD-RAM
disc cannot be recovered. You must check the content of the disc
carefully before you delete it, taking care that, if multiple drives that can
write data to discs are connected, you do not delete data from the
wrong one.
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In writing to DVD-R, DVD-R (Dual Layer), DVD-RW, DVD+R, DVD+R
(Double Layer), DVD+RW or DVD-RAM media, some space is required
for file management, so you may not be able to write to the full capacity
of the disc.
DVD-RW:
DVD Specifications for Recordable Disc for Version 1.1 or
version 1.2
Victor Company of Japan, Ltd. (JVC) (for 4x and 6x speed media)
MITSUBISHI KAGAKU MEDIA CO.,LTD. (for 4x and 6x speed media)
DVD+RW:
MITSUBISHI KAGAKU MEDIA CO., LTD. (for 4x and 8x speed media)
DVD-RAM:
DVD Specifications for DVD-RAM Disc for Version 2.0, Version 2.1
or Version 2.2
Panasonic Corporation (for 3x and 5x speed media)
Hitachi Maxell, Ltd. (for 3x and 5x speed media)
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Some types and formats of DVD-R (Dual Layer) and DVD+R (Double
Layer) discs may be unreadable.
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2.6GB and 5.2GB DVD-RAM media cannot be read from or written to.
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Disc created in DVD-R (Dual Layer) format4 (Layer Jump Recording)
cannot be read.