DVD-RW


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Related to DVD-RW: DVD+R

DVD-RW

(DVD-Read Write) A rewritable DVD disc for both movies and data from the DVD Forum. Also called "DVD Dash RW" and "DVD Minus RW," DVD-RW uses phase change recording. The media hold 4.7GB per side and can be rewritten 1,000 times. See DVD, DVD storage capacities, DVD drives, DVD+RW and optical disc.

In practice, the term "DVD" refers to all DVD formats. The phrase "update the DVD" really means "rewrite the data on the DVD-RW or DVD+RW disc." See DVD.


Phase Change Recording
In rewritable DVDs, different intensities of the laser turn bits in the phase change recording layer between a crystalline state and an amorphous state.
References in periodicals archive ?
DVD Forum developed the DVD-R and DVD-RAM formats; the 4.7 GB versions of which have been shipping since 1998, in 2001 they released DVD-RW. DVD-R/RW and DVD-RAM were not backwards compatible with existing consumer DVD-Video and PC DVD-ROM drives.
At the current time DVD-RW drives will read CD-ROM, CD-R, and CD-RW drives, but will not write or rewrite to them.
"The driving force behind both DVD-R and DVD-RW has always been compatibility with standard DVD playback systems," said Andy Parsons, senior vice president of product development and technical support at Pioneer New Media Technologies, Inc.
Escribe en formato CD-R, CD-RW, DVD+R, DVD-R, DVD+RW y DVD-RW y lee cualquier CD y de DVD estandar
said Monday it will launch a new multi-drive DVD recorder that complies with the DVD-RAM, DVD-RW and DVD-R formats in the domestic market in mid-July, making it the world's first company to launch such a model.
The series (DCR-DVD100, DCR-DVD200 and DCR-DVD300) uses 3-inch DVD-R and DVD-RW discs and will record both still (640x480 on the 100 model, 1152x864 on the other two) and up to 60 minutes of moving images.
In DVD-RW devices, this codec enables the ADC and the DAC to run independently and at different sample rates offering the end-user more record and play-back options.
Major manufacturers Panasonic, Pioneer and Phillips each uses a different system - called DVD-RAM, DVD+RW and DVD-RW.
DVD-R and DVD-RW (like CD-R and CD-RW) are one-time-only writeable and multiple rewriteable DVD discs, respectively.
Computer drives with DVD-RW have only recently shipped, so the statement that Pioneer hasn't been selling RW products successfully is not exactly accurate.
Last year, Pioneer launched the first DVD-RW rewritable DVD in Japan, and a wide variety of quality DVD players.