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As of 2007 DVD is the de facto standard for pre-recorded movies, and popular storage of data beyond the capacity of CD. With the development of high-definition television , and the popularization of broadband and digital storage of movies, a further format development took place, again giving rise to two camps: HD DVD and Blu-ray , based upon a ...
Comparison of various optical storage media. This article compares the technical specifications of multiple high-definition formats, including HD DVD and Blu-ray Disc; two mutually incompatible, high-definition optical disc formats that, beginning in 2006, attempted to improve upon and eventually replace the DVD standard.
3D optical data storage, which has multiple layers of media and thus stores multiples of Blu-ray capacity; 5D optical data storage which is primarily aimed at long-term data storage on the order of thousands of years; Near-field optics; Solid immersion optics (allowing an extremely high numerical aperture).
HD DVD-RW is the rewritable disc variant of HD DVD with equal storage capacity to an HD DVD-R. The primary advantage of HD DVD-RW over HD DVD-R is the ability to erase and rewrite to an HD DVD-RW disc, up to about 1,000 times before needing replacement, making them comparable with the CD-RW and DVD-RW standards.
Consumer-grade high definition players required an inexpensive storage medium capable of holding the larger amount of data needed for HD video. [4] The breakthrough came with Shuji Nakamura 's invention of the blue laser diode , whose shorter wavelength opened the door to higher density optical media following a six-year patent dispute .
Pages in category "Optical computer storage" The following 37 pages are in this category, out of 37 total. ... Comparison of popular optical data-storage systems;
In the history of optical storage media there have been and there are different optical disc formats with different data writing/reading speeds.. Original CD-ROM drives could read data at about 150 kB/s, 1× constant angular velocity (CAV), [1] the same speed of compact disc players without buffering.
The optical disc standard Blu-ray Disc can provide enough digital storage to store hours of HD video content. Digital Versatile Discs or DVDs (that hold 4.7 GB for a Single layer or 8.5 GB for a double layer), are not always up to the challenge of today's high-definition (HD) sets.
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