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4-32 User’s Manual
Operating Basics
■ DISC created in DVD-R DL format4 (Layer Jump Recording) cannot be
read.
■ There are two types of DVD-R discs: authoring and general use discs.
Do not use authoring discs. Only general use discs can be written to by
a computer drive.
■ You can use DVD-RAM discs that can be removed from a cartridge and
DVD-RAM discs designed without a cartridge.
■ Other DVD-ROM drives for computers or other DVD players may not be
able to read DVD-R/-R DL/-RW or DVD+R/+R DL/+RW discs.
■ Data written to a CD-R/DVD-R/-R DL/DVD+R/+R DL disc cannot be
deleted either in whole or in part.
■ Data deleted (erased) from a CD-RW, DVD-RW, DVD+RW and DVD-
RAM disc cannot be recovered. Check the content of the disc carefully
before you delete it. If multiple drives that can write data to discs are
connected, be careful not to delete data from the wrong drive.
■ In writing to a DVD-R/-R DL/-RW, DVD+R/+R DL/+RW or DVD-RAM
disc, some disc space is required for file management, so you may not
be able to write 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. Even if you write
only a small amount of data, it might take time to fill in the dummy data.
■ When multiple drives that can write data to discs are connected, be
careful not to write to the wrong drive.
■ Be sure to connect the AC adaptor before you write or rewrite.
■ Before you enter Sleep or Hibernation Mode, be sure to finish DVD-
RAM writing. When writing is finished, you can eject DVD-RAM media.
■ Be sure to close all other software programs except the writing
software.
■ Do not run software such as a screen saver, which can put a heavy load
on the CPU.
■ Operate the computer in the full-power mode. Do not use power-saving
features. Be careful not to write to the wrong drive.
■ Do not write while a virus check software is running. Wait for it to finish
and then disable virus detection programs including any software that
checks files automatically in the background.
■ Do not use hard disk utilities, including those intended to enhance hard
disk drive access speed. They may cause unstable operation and data
damage.
■ CD-RW (Ultra Speed +) media is not supported. If used, data may be
lost or damaged.
■ Write from the computer’s hard disk drive to the CD/DVD. Do not try to
write from shared devices such as a LAN server or any other network
device.