A DVD+RW is a rewritable optical disc with equal storage capacity to a DVD+R, typically 4.7 GB (interpreted as ≈ 4.7 · 10⁹, actually 2295104 sectors of 2048 bytes each). The format was developed by a coalition of corporations, known as the DVD+RW Alliance, in late 1997, although the standard was abandoned until 2001, when it was heavily revised and the capacity increased from 2.8 GB to 4.7 GB. Credit for developing the standard is often attributed unilaterally to Philips, one of the members of the DVD+RW Alliance. Although DVD+RW has not yet been approved by the DVD Forum, the format is too popular for manufacturers to ignore, and as such, DVD+RW discs are playable in 3/4 of today's DVD players. Image File history File links The DVD+RW logo, used for example of the trademark. ... In computing, sound reproduction, and video, an optical disc is flat, circular, usually polycarbonate disc whereon data is stored. ... The terms storage and memory refer to the parts of a digital computer that retain physical state (data) for some interval of time, possibly even after electrical power to the computer is turned off. ... A DVD+R disc The title of this article is incorrect due to technical limitations. ... This article is about the unit of measurement, for the computer hardware manufacturer see Gigabyte Technology. ... This article refers to the unit of binary information. ... The DVD+RW Alliance is a group of electronic hardware, optical storage and software manufacturers who created and promote a format standard of recordable and rewritable DVDs, known as the plus format. ... 1997 is a common year starting on Wednesday of the Gregorian calendar. ... 2001: A Space Odyssey. ... Koninklijke Philips Electronics N.V. (Royal Dutch Philips Electronics Ltd. ... The DVD Forum is an international organization composed primarily of hardware and software companies that use and develop the DVD format. ...

Unlike the DVD-RW format, DVD+RW was made a standard earlier than DVD+R. The title given to this article is incorrect due to technical limitations. ... A DVD+R disc The title of this article is incorrect due to technical limitations. ...

One competing rewritable format is DVD-RW. Hybrid drives that can handle both, often labeled "DVD±RW", are very popular since there is not yet a single standard for recordable DVDs. The title given to this article is incorrect due to technical limitations. ... It has been suggested that this article or section be merged with DVD. (Discuss) DVD±R is not a separate DVD format. ...

DVD+RW discs can be rewritten about 1,000 times, making them comparable with the CD-RW standard. DVD+RW discs are commonly used for volatile data, such as backups or collections of files. However, they are not as widely used for home DVD video recorders as DVD-RW, primarily because they were originally designed for storage of data, rather than of video. In computing and data storage, Compact Disc Rewritable, or CD-RW, is a rewritable version of CD-ROM. Whereas standard prerecorded compact discs have their information permanently stamped into an aluminium reflecting layer, CD-RW discs have a phase-change recording layer made of silver, indium, antimony and tellurium, and... The video cassette recorder (or VCR, less popularly video tape recorder) is a type of video tape recorder that uses removable cassettes containing magnetic tape to record audio and video from a television broadcast so it can be played back later. ...

DVD+RW disks purportedly support a feature called "lossless linking" which is supposed to allow some amount of re-writing without requiring a full erasure of the disc.

See also

• Book type
• DVD+R
• DVD+R DL
• MultiLevel Recording

The Book Type is a field of four bits at the start of every DVD (in the physical format information section of the control data block) that indicates what the physical format of the disc is. ... A DVD+R disc The title of this article is incorrect due to technical limitations. ... DVD+R DL (Dual_layer), also known as DVD+R9, is a derivative of the DVD+R format created by the DVD+RW Alliance. ... MultiLevel Recording (ML) was a technology developed by Calimetrics to increase the storage capacity of prerecorded and writable optical discs. ...

External links

• Understanding Recordable & Rewritable DVD
• DVD+RW Alliance