分类： Mysql/postgreSQL
2011-03-28 17:59:21
The origin of its name for the Blu-ray burning / reading CD-ROM through the blue - violet laser to complete, this blue-violet laser wavelength of 405 nm, which can allow the disc to record more information than conventional DVD, the traditional DVD uses a wavelength of 650 nm red laser. A double-layer Blu-ray discs can store 50GB capacity file, is a double-layer DVD 6 times normal, that is, 10 times a single-layer DVD.
In February 2008, before the next generation of a protracted war in the Blu-ray high definition DVD formats HD DVD camp between the Union and, until February 19, 2008, HD DVD camp, Toshiba officially announced the removal of the main supporters of HD DVD all Business, this high-definition format war was finally settled, the Blu-ray victory.
Blu-ray Blu-ray technology was originally developed by the Union (Blu-ray Disc Association) proposed and gradually developed, the Blu-ray alliance is composed of multiple consumer electronics manufacturers, computer hardware manufacturers, film makers and other coalition together. As of October 21, 2008, the United States a total of more than 970 Blu-ray software / movies for sale, Japan had 540, the end of 2008, the U.S. market for sale of Blu-ray software / movie will be over 1300.
