Search results
Results from the WOW.Com Content Network
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.
Optical storage refers to a class of data storage systems that use light to read or write data to an underlying optical media. Although a number of optical formats have been used over time, the most common examples are optical disks like the compact disc (CD) and DVD.
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 ...
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.
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 .
"Optical Storage Technology Association". O'Kelly, Terence. "Reference Guide for Optical Media" (PDF). Memorex Inc. – via A.N.T. Audio. "The history of ideas "the optical disc as a "unique" carrier of information in the systems management". European Society of the History of Science. Archived from the original on 2015-05-18
Non-cinematic HDTV video recordings intended for broadcast are typically recorded either in 720p or 1080i format as determined by the broadcaster. 720p is commonly used for Internet distribution of high-definition video, because most computer monitors operate in progressive-scan mode. 720p also imposes less strenuous storage and decoding ...
Download as PDF; Printable version; In other projects Wikidata item; ... Pages in category "Optical computer storage" The following 37 pages are in this category, out ...