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CD-Video
CD Video (also known as CDV, CD-V, or CD+V) was a format of optical media disc that was introduced in 1987 that combines the technologies of standard compact disc and LaserDisc. CD-V discs are the same size as a standard audio CD, and contain up to 20 minutes' worth of CD audio that can be played on any audio CD player. It also contains up to 5 minutes of LaserDisc video information with digital CD-quality sound, which can be played back on a newer LaserDisc player capable of playing CD-V discs or CD-V-only players. The "CD Video" brand was also used to market some and LaserDiscs which included a digital soundtrack but no CD-compatible content. Description 12 cm "CD Video" disc format One of the first LaserDisc players that can play CD-V discs is the Pioneer CLD-1010 from 1987. Though it is a CD-based format, CD Video was never given a rainbow book designation; the idea of encoding analogue video, which is incompatible between different regions, was poorly received by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LaserDisc
LaserDisc (LD) is a home video format and the first commercial optical disc storage medium. It was developed by Philips, Pioneer Corporation, Pioneer, and the movie studio MCA Inc., MCA. The format was initially marketed in the United States in 1978 under the name DiscoVision, a brand used by MCA. As Pioneer took a greater role in its development and promotion, the format was rebranded LaserVision. While the LaserDisc brand originally referred specifically to Pioneer's line of players, the term gradually came to be used generically to refer to the format as a whole, making it a genericized trademark. The discs typically have a diameter of , similar in size to the phonograph record. Unlike most later optical disc formats, LaserDisc is not fully Digital data, digital; it stores an analog video signal. Many titles featured Compact Disc Digital Audio, CD-quality digital audio, and LaserDisc was the first home video format to support surround sound. Its 425 to 440 horizontal lin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Video Single Disc
Video Single Disc (VSD) is a disc-based format that carried the same analog video information as a LaserDisc, but on a 12-centimetre (4.75 inch) diameter CD-sized disc. It was spearheaded by Sony and was released in Japan in 1990. It was a new variety of laserdisc and variation on the CD Video (CD-V) format, except that VSD disc carried only a video track (of up to 5 minutes' duration), and its associated audio, with no CD-compatible partition. The disc is the same size as a standard CD and holds five minutes of video with digital sound. It did not have any additional audio tracks like CD-V. Like CD-V, VSD discs could be played back by multi-disc or LaserDisc players that had VSD playback capability. Release Upon release, the Video Single Disc was seen as a possible replacement for the failing “CD Video” format, which had confused the public with its combination of five minutes of video and 20 minutes of audio. Cost In Japan the Video Single Disc (VSD) was listed at around ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LaserDisc Player
A LaserDisc player is a device designed to play video (Analog video, analog) and audio (Analog audio, analog or Digital audio, digital) stored on LaserDisc. LaserDisc was the first optical disc format marketed to consumers; it was introduced by MCA DiscoVision in 1978. From 1978 until 1984, all LaserDisc player models read discs by using a helium–neon laser. In 1984, Pioneer Corporation introduced the first consumer player with a Solid-state laser, solid-state laser diode. This model, the Pioneer LD-700, was also the first LaserDisc player with a front-loading disc bay instead of a top-loading one. Pioneer became the market leader in LaserDisc technology. In the 1990s, Pioneer and others produced a small number of a high-definition video player models, which employed multiple sub-Nyquist sampling encoding (MUSE) technology. In 1996, Pioneer distributed their first DVD player in Japan, a combination Laserdisc/DVD player, model DVL-9. Pioneer announced the end of LaserDisc pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optical Disc
An optical disc is a flat, usuallyNon-circular optical discs exist for fashion purposes; see shaped compact disc. disc-shaped object that stores information in the form of physical variations on its surface that can be read with the aid of a beam of light. Optical discs can be reflective, where the light source and detector are on the same side of the disc, or transmissive, where light shines through the disc to be detected on the other side. Optical discs can store analog information (e.g. LaserDisc), digital information (e.g. DVD), or store on the same disc (e.g. CD Video). Their main uses are the distribution of media and data, and long-term archival. Design and technology The encoding material sits atop a thicker substrate (usually polycarbonate) that makes up the bulk of the disc and forms a dust defocusing layer. The encoding pattern follows a continuous, spiral path covering the entire disc surface and extending from the innermost track to the outermost track ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holographic Versatile Disc
The Holographic Versatile Disc (HVD) is an optical disc technology that was expected to store up to several terabytes of data on an optical disc 10 cm or 12 cm in diameter. Its development commenced in April 2004. The technology was abandoned due to funding issues. One of the responsible companies went bankrupt in 2010. The reduced radius was meant to reduce costs and materials used. It employs a technique known as Collinear Holography, whereby a blue-green and red laser beam are collimated in a single beam. The blue-green laser reads data encoded as laser interference fringes from a holographic layer near the top of the disc. A red laser is used as the reference beam to read servoinformation from a regular CD-style aluminium layer near the bottom. Servoinformation is used to monitor the position of the read head over the disc, similar to the head, track, and sector information on a conventional hard disk drive. On a CD or DVD this servoinformation is interspersed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Video Storage
Video is an Electronics, electronic medium for the recording, copying, playback, broadcasting, and display of moving picture, moving image, visual Media (communication), media. Video was first developed for mechanical television systems, which were quickly replaced by cathode-ray tube (CRT) systems, which, in turn, were replaced by flat-panel displays of several types. Video systems vary in display resolution, Display aspect ratio, aspect ratio, refresh rate, color capabilities, and other qualities. Analog and digital variants exist and can be carried on a variety of media, including radio broadcasts, magnetic tape, optical discs, Video file format, computer files, and Streaming media, network streaming. Etymology The word ''video'' comes from the Latin verb ''video,'' meaning to see or ''videre''. And as a noun, "that which is displayed on a (television) screen," History Analog video Video developed from facsimile systems developed in the mid-19th century. Early mecha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Audio Storage
Sound recording and reproduction is the electrical, Mechanical system, mechanical, electronic, or digital inscription and re-creation of sound waves, such as spoken voice, singing, instrumental music, or sound effects. The two main classes of sound recording technology are analog recording and digital recording. Acoustic analog recording is achieved by a microphone diaphragm that senses changes in atmospheric pressure caused by acoustics, acoustic sound waves and records them as a mechanical representation of the sound waves on a medium such as a phonograph record (in which a stylus cuts grooves on a record). In magnetic tape recording, the sound waves vibrate the microphone diaphragm and are converted into a varying electric current, which is then converted to a varying magnetic field by an electromagnet, which makes a representation of the sound as magnetized areas on a plastic tape with a magnetic coating on it. Analog sound reproduction is the reverse process, with a large ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compact Disc
The compact disc (CD) is a Digital media, digital optical disc data storage format co-developed by Philips and Sony to store and play digital audio recordings. It employs the Compact Disc Digital Audio (CD-DA) standard and was capable of holding of uncompressed stereo audio. First released in Japan in October 1982, the CD was the second optical disc format to reach the market, following the larger LaserDisc (LD). In later years, the technology was adapted for computer data storage as CD-ROM and subsequently expanded into various writable and multimedia formats. , over 200 billion CDs (including audio CDs, CD-ROMs, and CD-Rs) had been sold worldwide. Standard CDs have a diameter of and typically hold up to 74 minutes of audio or approximately of data. This was later regularly extended to 80 minutes or by reducing the spacing between data tracks, with some discs unofficially reaching up to 99 minutes or which falls outside established specifications. Smaller variants, such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Techmoan
Matthew "Mat" Taylor, better known by his YouTube handle Techmoan, is a British YouTuber and blogger, specializing in consumer tech reviews and retrotech documentaries about technology of historical interest. Apart from reviews and tests, Taylor's videos often include disassembling (and repairing when possible) products and, in the case of older technology, reporting on the product's history and reception via references in publications of the time. For audio and entertainment devices this is often ''Billboard'' magazine, which at the time covered both consumer and trade electronics devices through articles and old advertisements. Bonus outro skits often feature a trio of muppet-like puppets, parodying YouTube viewer comments. Taylor's videos have been referenced by sites such as ''The A.V. Club'', ''Gizmodo'', ''Hackaday'', ''El Español'' and print publications such as ''Popular Mechanics'' and ''The Daily Telegraph''. By ratings on Reddit, ''MarketWatch'' listed the YouT ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Video CD
Video CD (abbreviated as VCD, and also known as Compact Disc Digital Video), (not to be confused with CD Video which is a type of Laserdisc) is a home video format and the first format for distributing films on standard optical discs. The format was widely adopted in all of Asia (except for Japan and South Korea), superseding the VHS and Betamax systems in those regions until DVD-Video became more affordable in the 2000s. The format is a standard digital data format for storing video on a compact disc. VCD discs/disc images are playable in dedicated VCD players and widely playable in most DVD players, personal computers and some video game consoles with an optical disc drive that is programmed to understand VCD discs. However, they are less playable in most Blu-ray Disc players, vehicle audio with DVD/Blu-ray support and video game consoles such as the Sony PlayStation and Xbox due to lack of backward compatibility for the older MPEG-1 format, inability to read MPEG-1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MPEG-1
MPEG-1 is a Technical standard, standard for lossy compression of video and Audio frequency, audio. It is designed to compress VHS-quality raw digital video and CD audio down to about 1.5 Mbit/s (26:1 and 6:1 compression ratios respectively) without excessive quality loss, making video CDs, digital Cable television, cable/Satellite television, satellite TV and digital audio broadcasting (DAB) practical. Today, MPEG-1 has become the most widely compatible lossy audio/video format in the world, and is used in a large number of products and technologies. Perhaps the best-known part of the MPEG-1 standard is the first version of the MP3 audio format it introduced. The MPEG-1 standard is published as International Organization for Standardization, ISO/International Electrotechnical Commission, IEC 11172, titled ''Information technology—Coding of moving pictures and associated audio for digital storage media at up to about 1.5 Mbit/s''. The standard consists of the follow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Music Video
A music video is a video that integrates a song or an album with imagery that is produced for promotion (marketing), promotional or musical artistic purposes. Modern music videos are primarily made and used as a music marketing device intended to promote the sale of music recordings. These videos are typically shown on music television and on streaming video sites like YouTube, or more rarely shown theatrically. They can be commercially issued on home video, either as video albums or video singles. The format has been described by various terms including "illustrated song", "filmed insert", "promotional (promo) film", "promotional clip", "promotional video", "song video", "song clip", "film clip", "video clip", or simply "video". While musical short, musical short films were popular as soon as recorded sound was introduced to theatrical film screenings in the 1920s, the music video rose to prominence in the 1980s when American TV channel MTV based its format around the medium. Mus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
