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-RW, the rewritable counterpart to DVD-R, has two recording modes: VR and VM.
DVD-RW is the rewritable version of DVD-R and is also compatible with many of the newer DVD-ROM drives and DVD-Video players.
The DVD-RW (referred to as 'RW') format was introduced last year featuring the ability to read and write rewritable RW media as well as popular DVD-R discs.
DVD-R and DVD-RW media are bare disks, while DVD-RAM disks have traditionally been enclosed in cartridges.
Their new drive writes DVD-R and DVD-RW, and it's attractively forward-priced, at just under $1,000.
DVD-RW drives, which are due for release in mid-year, will be expensive; and notwithstanding Steve Jobs's January announcement that they'll ship in the newest high-end Macs, there's absolutely no installed base of -RW yet.
DVD-RW is officially referred to as a "rerecordable" format but is commonly called a "rewritable" format.
And like Pioneer's original write-once DVD-R format, disks recorded in the DVD-RW format are specified to be readable in most of today's DVD-Video players and DVD-ROM drives.