DVD (also known as "Digital Versatile Disc" or "Digital Video Disc" - see Etymology) is a popular optical disc storage media format. Its main uses are video and data storage. Most DVDs are of the same dimensions as compact discs (CDs) but store more than six times as much data. Variations of the term DVD often describe the way data is stored on the discs: DVD-ROM has data which can only be read and not written, DVD-R and DVD+R can only record data once and then function as a DVD-ROM. DVD-RW and DVD+RW can both record and erase data multiple times. The wavelength used by standard DVD lasers is 650 nm , and thus has a red color. DVD-Video and DVD-Audio discs respectively refer to properly formatted and structured audio and video content. Other types of DVDs, including those with video content, may be referred to as DVD-Data discs. As next generation High definition optical formats also use a disc identical in some aspects yet more advanced than a DVD, such as Blu-ray Disc, the original DVD is occasionally given the retronym SD DVD (for standard definition). (more)
Genres: entertainment, music, movies
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DVD-Audio:
DVD-Audio (commonly abbreviated as DVD-A) is a digital format for delivering very high-fidelity audio content on a DVD. DVD-Audio includes no video and should not be confused with video DVDs containing concerts and music videos. The first discs enter
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DVD-Video:
DVD-Video is a consumer video format used to store digital video on DVD (DVD-ROM) discs, and is currently the dominant form of consumer video formats in the United States, Canada, Europe and Australia. Discs using the DVD-Video specification require
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DVD+RW:
DVD+RW is the name of a standard for optical discs: one of several types of DVD, which hold up to about 4.7 GB per disc (interpreted as approximately 4.7 × 10 9 bytes; actually 2295104 sectors of 2048 bytes each which comes to 4700372992 bytes,
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Blu-ray Disc:
Blu-ray Disc (also known as Blu-ray or BD) is an optical disc storage media format. Its main uses are high-definition video and data storage. The disc has the same dimensions as a standard DVD or CD. The name Blu-ray Disc is derived from the blue las
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DVD-RW:
A DVD-RW disc is a rewritable optical disc with equal storage capacity to a DVD-R, typically 4.7 GB. The format was developed by Pioneer in November 1999 and has been approved by the DVD Forum. Unlike DVD-RAM, it is playable in about 75% of conventio
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DVD region code:
DVD-Video discs may be encoded with a region code restricting the area of the world in which they can be played. Discs without region coding are called all region or region 0 discs. The commercial DVD player specification requires that a player to be
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DVD authoring:
DVD authoring is the process of creating a DVD video that can be played on a DVD player. DVD authoring software must conform to the specifications set by the DVD Forum group in 1995. The specifications are complicated due to the number of companies t
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DVD TV game:
A DVD TV game (or DVDi, "DVD interactive") is a standalone game that can be played on a set-top DVD player. The game takes advantage of technology built into the DVD format to create an interactive gaming environment compatible with most DVD players
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MiniDVD:
There are two types of MiniDVDs. * 80 mm DVD, which are smaller versions of the 120 mm DVD * cDVD, which are standard CDs written with the DVD-Video format The name is also sometimes used erroneously to refer to the Universal Media Disc (UMD), the fo
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HDTV quality DVD Player:
HDTV quality DVD Player is new generation of DVD player with High-definition television (HDTV) screen quality replay.
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Compact Disc:
A Compact Disc (also known as a CD) is an optical disc used to store digital data, originally developed for storing digital audio. The CD, available on the market since late 1982, remains the standard playback medium for commercial audio recordings t
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Data storage device:
A data storage device is a device for recording (storing) information (data). Recording can be done using virtually any form of energy, spanning from manual muscle power in handwriting, to acoustic vibrations in phonographic recording, to electromagn
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Optical disc:
In computing, sound reproduction, and video, an optical disc is a flat, circular disc (usually polycarbonate) wherein data are stored in the pits (or bumps) in its flat surface — sequentially on the continuous, spiral track extending from the innermo
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DVD-R:
DVD-R is a DVD recordable format. A DVD-R typically has a storage capacity of 4.71 GB (or 4.39 GiB), although the capacity of the original standard developed by Pioneer was 3.95 GB (3.68 GiB). Both values are larger than the storage capacity of its o
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DVD+R:
A DVD+R is a once-writable optical disc with 4.7 GB (4.377 GiB) of storage capacity (more precisely, 2295104 sectors of 2048 bytes each). It has slightly less storage capacity than the DVD-R (4.382 GiB). The format was developed by a coalition of cor
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Retronym:
A retronym is a type of neologism coined for an old object or concept whose original name has come to be used for something else, is no longer unique, or is otherwise inappropriate or misleading. The term was coined by Frank Mankiewicz and popularize
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Panasonic:
Panasonic (パナソニック Panasonikku) is an international brand name for Japanese electric products manufacturer Matsushita Electric Industrial Co., Ltd. Under this brand Matsushita sells plasma and LCD display panels, DVD recorders and players, Blu-ray Dis
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HD DVD:
HD DVD or High-Definition Digital Versatile Disc is a high-density optical disc format designed for the storage of data and high-definition video. HD DVD was designed principally by Toshiba, and was envisaged to be the successor to the standard DVD f
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DVD-RAM:
DVD-RAM (DVD–Random Access Memory) is a disc specification presented in 1996 by the DVD Forum, which specifies rewritable DVD-RAM media and the appropriate DVD writers. DVD-RAM media have been used in computers as well as camcorders and personal vide
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Content Scramble System:
Content Scramble System (CSS) is a Digital Rights Management (DRM) scheme used on almost all commercially produced DVD-Video discs. It utilizes a relatively weak, proprietary 40-bit stream cipher algorithm. The system was introduced around 1996 and h
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DVD Forum:
The DVD Forum is an international organization composed of hardware, software, media and content companies that use and develop the DVD and HD DVD formats. It was initially known as the DVD Consortium when it was founded in 1995.
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Kees Schouhamer Immink:
Kornelis Antonie (Kees) Schouhamer Immink (born 18 December, 1946 in Rotterdam) is a Dutch scientist, inventor, and entrepreneur, who pioneered and advanced the era of digital audio, video, and data recording including popular digital media such as C
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VHS:
The Video Home System , better known by its abbreviation VHS, is a recording and playing standard developed by Victor Company of Japan, Limited (JVC) and launched in September 1976, with The Young Teacher being the first movie to be released and A Hi
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Pioneer Corporation:
Pioneer Corporation ( ) is a multinational corporation that specializes in digital entertainment products, based in Tokyo, Japan. The company was founded in 1938 in Tokyo as a radio and speaker repair shop. Today, Pioneer is well-known for technology
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Content Protection for Recordable Media:
Content Protection for Recordable Media and Pre-Recorded Media (CPRM/CPPM) is a mechanism for controlling the copying, moving and deletion of digital media on a host device, such as a personal computer, or other digital player. It is a form of Digita
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