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DVD+RW/+R ReWritable Drive
User’s Guide
- 49 -
Frequently Asked Questions
DVD+RW/+R
Q: How is DVD+RW/+R different from DVD-RAM and DVD-RW?
A: DVD+RW/+R, DVD-RAM and DVD-RW are all ReWritable DVD formats,
however, only DVD+RW/+R is designed to be compatible with existing DVD-
ROM drives and DVD-Video players. This means that a DVD+RW/+R disc
recorded in a DVD+RW/+R video recorder can be played in virtually all DVD-
Video players or DVD-ROM equipped PCs, and that any DVD+RW/+R disc
recorded with data on a PC DVD+RW/+R drive can be read by most DVD-
ROM drives.
The physical disc format of DVD-RW differs from DVD-Video in such a way
that even in compatible mode it can be read by less existing players.
DVD-RAM uses a totally different kind of physical recording method, which is
absolutely incompatible with DVD (hence, it can hardly be called 'DVD'). No
existing player will be able to read DVD-RAM discs, even if you use the newer
version without the cartridge housing.
Q: How are DVD+RW/+R related to CD-R/RW?
A: DVD+RW/+R will be used both in data storage (PC) and video (consumer
electronics) applications. In the future, PC CD-R/RW drives will be replaced by
PC DVD+RW/+R drives, since these can do anything a CD-R/RW drive can,
only faster and with a much higher capacity. Moreover, most PC DVD+RW/+R
drives will also be able to write to and read from CD-R and CD-RW media.
However in relation to audio recorders, CD-Recordable Digital Audio will
remain on the market for many years to come. Also there is currently no
support for DVD+RW/+R audio-only applications to date.
Q: What is the DVD+RW Alliance?
A: The DVD+RW Alliance is a group of companies that co-developed and
promotes the DVD+RW standard: Philips, Hewlett-Packard, Sony, Yamaha,
Ricoh and Mitsubishi/Verbatim. It has been joined by Thomson/RCA in late