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The speckles increased in volume and frequency as the disc continued to degrade. Much of the early production run of MCA DiscoVision discs had severe laser rot. Also, in the 1990s, LaserDiscs manufactured by Sony's DADC plant in Terre Haute, Indiana, were plagued by laser rot. [4]
Sony Digital Audio Disc Corporation (Sony DADC) is a manufacturer of CDs, DVDs, UMDs, and Blu-ray Discs.The company has many plants worldwide. Although it primarily services Sony Music Entertainment-owned record labels, Sony Pictures Home Entertainment, and Sony Interactive Entertainment, it also manufactures discs for other labels, home entertainment distributors, and video game publishers.
The LaserDisc ( LD) is a home video format and the first commercial optical disc storage medium, initially licensed, sold and marketed as MCA DiscoVision (also known simply as "DiscoVision") in the United States in 1978. Its diameter typically spans 30 cm (12 in). Unlike most optical-disc standards, LaserDisc is not fully digital, and instead ...
LaserDisc player. A LaserDisc player is a device designed to play video ( analog) and audio ( analog or 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.
MiniDisc ( MD) is an erasable magneto-optical disc-based data storage format offering a capacity of 60, 74, and later, 80 minutes of digitized audio . Sony announced the MiniDisc in September 1992 and released it in November [ 2] of that year for sale in Japan and in December in Europe, North America, and other countries. [ 3]
Philips. Plasmon Data Systems (Defunct in late 1990's) [ 21] Prodisc. Pressing-Media www.pressing-media.com. PrimeDisc [ 22] Princo Corp [ 23] (seems to have stopped, as of 2020 they no longer appear on their home page) [ 24] Panasonic (Matsushita) (last made DVD-RAM, stopped due to shrinking demand, still makes Blu-rays [ 25]) Ending ...
Professional Disc (PFD) is a digital recording optical disc format introduced by Sony in 2003 primarily for XDCAM, its tapeless camcorder system. It was one of the first optical formats to utilize a blue laser, which allowed for a higher density of data to be stored on optical media compared to infrared laser technology used in the CD and red laser technology used in the DVD format.
The double-density compact disc ( DDCD) is an optical disc technology developed by Sony and Philips using the same 780 nm laser wavelength as a compact disc. The format was announced in July 2000 and is defined by the Purple Book standard document. [1] Unlike the compact-disc technology it is based on, DDCD was designed exclusively for data ...
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