Operating Basics
4-38 User’s Manual
O
PERATING
B
ASICS
◆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 circum-
❑This drive cannot use discs that allow writing faster than 8x
speed (DVD-R and DVD+R media), 4x spe ed (DVD-RW and
DVD+RW media), 5x speed (DVD-RAM media), 2x speed
(DVD-R (Dual Layer) media) and 2.4x speed (DVD+R (Dou-
ble 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.