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DVD Formats

Not unlike the different flavors of CDs, there are five physical formats, or books, of DVD:

  • DVD-ROM is a high-capacity data storage medium
  • DVD-Video is a digital storage medium for feature-length motion pictures
  • DVD-Audio is an audio-only storage format similar to CD-Audio
  • DVD-R offers a write-once, read-many storage format akin to CD-R
  • DVD-RAM was the first rewritable (erasable) flavor of DVD to come to market and has subsequently found competition in the rival DVD-RW and DVD+RW format.

With the same overall size as a standard 120mm diameter, 1.2mm thick CD, DVD discs provide up to 17GB of storage with higher than CD-ROM transfer rates and similar to CD-ROM access times and come in four versions:

  • DVD-5 is a single-sided single-layered disc boosting capacity seven-fold to 4.7GB
  • DVD-9 is a single-sided double-layered disc offering 8.5GB
  • DVD-10 is a 9.4GB dual-sided single-layered disc
  • DVD-18 will increase capacity to a huge 17GB on a dual-sided dual-layered disc.

The first commercial DVD-18 title, The Stand, was released in October 1999. However, given how long it took for production of dual-layer, single-sided discs to become practical, it is difficult to forecast how long it’ll be before the yields of DVD-18 discs will meet the replication demands of mainstream movie distribution, especially since low yields mean higher replication costs. It’s likely that a DVD-14 format – two layers on one side, one layer on the other side – will be seen in the interim, since they’re somewhat easier to produce.

It is important to recognize that in addition to the five physical formats, DVD also has a number of application formats, such as DVD-Video and DVD-Audio. The Sony PlayStation2 game console is an example of a special application format.

  • History of DVD development and birth of the DVD Forum
  • DVD Formats
  • DVDs – digital versatile disks – how they’re made and how they work
  • DVD OSTA
  • DVD File Systems
  • CDR-RW Compatibility Issues
  • DVD Encoding
  • DVD Content Protection
  • Regional codes for DVDs
  • DVD-ROM
  • DVD-Vdeo
  • DVD DivX Codec
  • DVD-Audio
  • DVD Recordable Formats
  • DVD-R – write once recordable DVDs
  • DVD-RAM
  • DVD+RW
  • DVD-RW
  • DVD+R
  • DVD Multi-Writers

Filed Under: DVD

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