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User’s Manual 4-19
Operating Basics
■ 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.
■ 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.
■ 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.
■ You can use both DVD-RAM discs that can be removed from a
cartridge and DVD-RAM discs designed without a cartridge.
■ 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), DVD+RW or HD DVD-R discs.
■ Data written to a CD-R, DVD-R, DVD-R (Dual Layer), DVD+R, DVD+R
(Double Layer) or HD DVD-R discs cannot be deleted either in whole or
in part.
■ Data deleted/erased from a CD-RW, DVD-RW, DVD+RW, DVD-RAM
or HD DVD-R 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.
■ In writing to DVD-R, DVD-R (Dual Layer), DVD-RW, DVD+R, DVD+R
(Double Layer), DVD+RW, DVD-RAM or HD DVD-R media, some
space is required for file management, so you may not be able to write
to the full capacity of the disc.
■ Since the disc is based on the DVD standard, it might be filled with
dummy data if the written data is less than about 1GB. Therefore, in
these circumstance, even if you write only a small amount of data, it
might take additional time to fill in the dummy data.
■ When multiple drives that can write data to discs are connected, be
sure that you do not write to or delete data from the wrong drive.
■ Be sure to connect the AC adaptor to the computer before you write or
rewrite any information.
■ Before you enter either Sleep Mode or Hibernation Mode, take care to
ensure that any DVD-RAM writing has been completed. In this instance,
writing is finished if you can eject the DVD-RAM media.
■ This drive cannot use discs that allow writing faster than 16x speed
(DVD-R and DVD+R media), 6x speed (DVD-RW media), 8x
(DVD+RW media), 5x speed (DVD-RAM media), 4x speed (DVD-R
(Dual Layer) media) and 8x speed (DVD+R (Double Layer media).
■ Some types and formats of DVD-R (Dual Layer) and DVD+R (Double
Layer) discs may be unreadable.
■ 2.6GB and 5.2GB DVD-RAM media cannot be read from or written to.
■ DISC created in DVD-R (Dual Layer) format4 (Layer Jump Recording)
cannot be read.