A stack of colorful DVD's.
An example of a DVD is the disc that contains prerecorded movies that people watch in their homes.
Origin of DVDfrom d(igital) v(ideo) d(isc) or d(igital) v(ersatile) d(isc)
Origin of DVDd(igital) v(ideo)d(isc) d(igital) v(ersatile) d(isc)
- Digital video disc or digital versatile disc; an optical disc, typically one holding a commercially-recorded movie.
dvd - Computer Definition
The standard-definition (SD) optical disc format. Introduced in the U.S. in 1997 and developed by the computer and movie industries, the disc has the same 120mm/4.75" diameter as a CD but holds 4.7GB rather than 700MB. Whereas CDs use only one side, DVDs can be recorded on both sides as well as in dual layers. DVDs have 480 lines of resolution in the U.S. (NTSC) and 576 lines elsewhere (PAL). For high-definition (HD) optical discs with 1,080 lines of resolution, see Blu-ray. DVD first stood for "digital videodisc;" then "digital versatile disc" and finally just "D-V-D." In practice, DVD refers to all the following DVD formats. Modern DVD drives read and write all CD and DVD formats, except for DVD-RAM, which requires its own drive. See CSS, DVD region codes and optical disc. DVD-Video - SD Movies DVD-Video is the movie format, which uses MPEG-2 compression to provide approximately two hours of video per side at 480i resolution. Blu-ray players also play DVD movies. See DVD-Video, DTV and Blu-ray. DVD-ROM - Read-Only Data DVD-ROMs hold data permanently, and like CD-ROMs, they are pressed at the factory. See DVD-ROM. DVD-R/DVD+R - Recordable (burnable) DVD-R and DVD+R are competing write-once formats for burning movies or data. They function like high-capacity CD-R discs. See DVD-R and DVD+R. DVD-RW/DVD+RW - Rewritable DVD-RW and DVD+RW are competing formats that can be rewritten 1,000 times. Aimed at the consumer, 1,000 rewrites are considered adequate. See DVD-RW and DVD+RW. DVD-RAM - Rewritable A DVD-RAM functions like a removable hard disk with a similar file structure. Although DVD-RAMs can be rewritten 100,000 times before they are no longer usable, they are not a popular medium. See DVD-RAM. DVD-Audio - High-Quality Music DVD-Audio was designed to supersede the music CD, but like its SACD counterpart, never caught on. However, downloable music is available at the same sampling rates as DVD-Audio. See DVD-Audio and high-resolution audio. Plus and Minus: +R, +RW, -R, -RW The formats endorsed by the DVD Forum have a hyphen in their names and are verbalized as "DVD Minus" or "DVD Dash." The competing formats from the DVD+RW Alliance use a plus sign. Starting in 2002, drives supporting both formats were introduced. See DVD Forum and DVD+RW Alliance. For drive specifications (2x, 4x, 8x, etc.), see DVD drives. For DVD storage specifications, see DVD storage capacities.