CONTENT
 CD Basics

 CD Audio

 CD-ROM

 DVDBasics

 DVD-Video

 DVD-ROM

 DVD-Audio

 DVD-Recordable

 Replication

 DigitalVideo

 Glossary


 
DVD recordable overview title graphic

DVD Recordable Discs Overview

Several recordable and re-writable disc formats have also been added to the DVD family

The DVD family would be incomplete without recordable versions. CD-Recordable discs were introduced in 1988 and CD-RW (the re-writable version) was introduced about 15 years after the first read-only CD was launched.

Both write-once and re-writable  DVD discs have been developed and all are now available. There are several different formats all with a capacity of 4.7GB per side:

  • DVD-R discs are write-once discs with a capacity of 4.7GB per side. Two versions have been defined: DVD-R for Authoring and DVD-R for General use. Note that copy protected content cannot be written to DVD-R discs.
  • DVD-RAM discs are re-writable discs with a capacity of 4.7GB per side for computer data storage and archive applications, although this format is also used in some DVD video recorders.
  • DVD-RW discs are re-writable discs with a capacity of 4.7GB per side for consumer applications such as video recording.
  • DVD+RW and DVD+R discs are not officially part of the DVD family, but are similar to the corresponding DVD-RW and DVD-R for General formats.

Both recorders and discs for these formats are  now available and include PC drives, video recorders and camcorders.  More hardware will be available soon and prices are expected to continue to fall.  Compatibility is an issue as not all formats will play on existing DVD players and DVD-ROM drives.

 

 

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