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User’s Manual 4-21
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 optical disc 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.
■ Data written to a CD-R, DVD-R, DVD-R DL, DVD+R or DVD+R DL
discs cannot be deleted either in whole or in part.
■ 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, making sure 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 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.
■ 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.
DVD-RAM: (DVD Specifications for DVD-RAM Disc for Version 2.0,
Version 2.1 or Version 2.2)
Panasonic CO., LTD. (for 3x and 5x speed media)
Hitachi Maxell, Ltd. (for 3x and 5x speed media)
BD-R:
Panasonic CO., LTD.
BD-R DL:
Panasonic CO., LTD.
BD-RE:
Panasonic CO., LTD.
BD-RE DL:
Panasonic CO., LTD.
■ Some types and formats of DVD-R DL and DVD+R DL discs may be
unreadable.
■ DISC created in DVD-R DL format4 (Layer Jump Recording) cannot be
read.