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单词 dvd
释义

DVD


DVD

D0439550 (dē′vē-dē′)n. A high-density optical disc for storing large amounts of data, especially high-resolution audio-visual material.
[d(igital) v(ideo)d(isc) and d(igital) v(ersatile) d(isc).]

DVD

abbreviation for (Communications & Information) digital versatile or digital video disk: an optical disk used to store audio, video, or computer data, esp feature films for home viewing

DVD

an optical disc that can store a very large amount of digital data, as text, music, or images. [1990–95; orig. d(igital) v(ideo) d(isc); then d(igital) v(ersatile) d(isc); now an abbreviation only]
Thesaurus
Noun1.dvd - a digital recording (as of a movie) on an optical disk that can be played on a computer or a television setDVD - a digital recording (as of a movie) on an optical disk that can be played on a computer or a television setvideodisc, videodiskoptical disc, optical disk - a disk coated with plastic that can store digital data as tiny pits etched in the surface; is read with a laser that scans the surface
Translations

dvd

DVD光盘zhCN

DVD


DVD:

see digital versatile discdigital versatile disc
or digital video disc
(DVD), a small plastic disc used for the storage of digital data. The successor media to the compact disc (CD), a DVD can have more than 100 times the storage capacity of a CD.
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.

DVD

(communications) An optical disk that has formats for audio, video, and computer storage applications, and that uses the same basic structure as the compact disk (CD) to store data, but achieves a greater storage capability by using a track pitch less than half that of the CD, pits and lands as little as half as long as the shortest on a CD, and two substrates, bonded together. Derived from digital versatile disk; digital video disk.

DVD

Digital Versatile Disc

DVD

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. For DVD speed ratings (1x, 2x, etc.), see DVD drives. 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. DVD-R DL and DVD+R DL are dual layer discs with twice the capacity. 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.


Sides and Layers
DVDs come in any combination of single or double sided with single or double layers. This shows the laser beam contacting the recorded surface in all of the possibilities.








DVD vs. CD-ROM
At minimum, the capacity of a DVD is seven times that of a CD-ROM because its tracks, pits and lands are more than twice as dense. It also uses more efficient recording algorithms. Add a second layer or record on both sides of the DVD, and capacity is doubled. (Image courtesy of C-Cube Microsystems.)








DVD


DVD

Digital versatile disk, digital video disk Informatics An optical disk capable of storing ≥ 4 GB of audiovisual data. Cf CD.
FinancialSeedisk drive

DVD


AcronymDefinition
DVDDigital Versatile Disc (formerly Digital Video Disc)
DVDDigital Video Disc (now Digital Versatile Disc)
DVDDick Van Dyke (actor)
DVDDeath Valley Days (TV show)
DVDDivide (street type)
DVDDiploma in Venerology & Dermatology (India)
DVDDigital Versatile Disc
DVDDigital Video Disc
DVDDivide Decimal
DVDDivers Droite (France, politics)
DVDDeutsche Vereinigung für Datenschutz
DVDDC Video Deluxe (skateboarding)
DVDDirect Vendor Delivery
DVDDevelopmental Verbal Dyspraxia
DVDDeath Valley Driver (pro wrestling)
DVDD-Von Dudley (wrestler)
DVDDefinitie Van Dopeheid (Dutch: Definition of Permissible Dope)
DVDDissociated Vertical Deviation (ophthalmology)
DVDDigital Video Drive
DVDDynamic Voltage Drop (electronics)
DVDDepp Vom Dienst (German: Idiot of Service)
DVDDouble-Vessel Disease
DVDDigital Virtual Disk
DVDDrivers Vigilance Device (UK)
DVDDriver and Vehicle Data Online Access

DVD


  • noun

Synonyms for DVD

noun a digital recording (as of a movie) on an optical disk that can be played on a computer or a television set

Synonyms

  • videodisc
  • videodisk

Related Words

  • optical disc
  • optical disk
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更新时间:2024/12/23 14:55:10