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User’s Manual 4-33
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, DVD-
RAM or HD DVD-RW 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 DL, DVD-RW, DVD+R,
DVD+R DL, DVD+RW, HD DVD-R or HD DVD-RW discs.
■ Data written to a CD-R, DVD-R, DVD-R DL, DVD+R, DVD+R DL, HD
DVD-R or HD DVD-R DL discs cannot be deleted either in whole or in
part.
■ Data deleted/erased from a CD-RW, DVD-RW, DVD+RW, DVD-RAM,
HD DVD-R or HD DVD-R DL 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 DL, DVD-RW, DVD+R, DVD+R DL,
DVD+RW, DVD-RAM, HD DVD-R, HD DVD-R DL or HD DVD-RW
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 1 GB. 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.
■ This drive cannot use discs that allow writing faster than 4x speed
(DVD-R, DVD+R, DVD-RW and DVD+RW media), 3x speed (DVD-
RAM media), 2.4x speed (DVD+R DL media), 2x speed (DVD-R DL
and HD DVD-R media) and 1x speed(HD DVD-R DL and HD DVD-RW
media).
■ Some types and formats of DVD-R DL and DVD+R DL discs may be
unreadable.
■ 2.6 GB and 5.2 GB DVD-RAM media cannot be read nor written.
■ DISC created in DVD-R DL format4 (Layer Jump Recording) cannot be
read.