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DVD+RW/+R ReWritable Drive
User’s Guide
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Furthermore, DVD+RW/+R allows address information (stored in land pre-
pits) to be read during the recording process, which allows it to locate at what
position of the disc the writing process is taking place. When the writing
process is interrupted due to a shock of the drive, it returns to the previous
writing location so that the writing can be continued.
Higher Write Speeds
DVD+RW/+R drives will write DVD+RW/+R discs at 2.4x DVD speed. This
results in a transfer rate of about 25Mbit/sec, which is comparable to a CD
drive writing at about 22x CD speed. A full DVD-Video disc can this way be
completed within 25 minutes!
Background Formatting
Background formatting allows the drive to format only a portion of disc at
first, which is necessary for initial writing, and then automatically resumes
formatting for the remaining portion in the disc when writing/reading is not
processed. Formatting is suspended anytime writing or reading starts. This
reduces formatting time and discs partially formatted can be ejected from the
drive and still be completely playable.
Comparison table
Feature DVD+RW/+R DVD-R/RW
Accurate Lossless Linking Yes No
Defect management (compatible with
current readers)
Yes No
Addressing during recording Yes No
CLV writing Yes Yes
Optional CAV writing Yes No
Write speed ReWritable discs 2.4x DVD 1x DVD
Edit DVD video recording on PC using
same disc
Yes No
Background formatting Yes No
Mount Rainier support Yes No
Recorded media may not be readable on approximately 30% of
existing DVD-ROM drives and DVD-Video players. For detailed
information regarding the DVD+RW/+R format, please refer to the
DVD+RW Alliance webpage at http://www.dvdrw.com.