Thread: Wi Fi E book

Blu-ray is a format for next-generation optical disc 12 cm in diameter for high-definition video and storage of data of high density. The use of laser blue writing and reading can store more quantity of information per area than DVD because the blue laser has a shorter wavelength than the lasers used to store records DVD.1

Its storage capacity reaches 50 gigabytes double layer and 25 GB to a layer. The Blu-ray from 400 GB to 16 layers has already been patented and is expected to go to market in 2010 as well as plans to patent a Blu-Ray 1 Terabyte for 2011 or 2012. Console video games PlayStation 3 can read double layer discs up and confirmed that it is ready to receive the disc capes.

This format was imposed on its competitor HD DVD the war of formats started to become successor to the DVD standard as in his day was between VHS and Beta max and the phonograph and the gramophone. After the downfall of many supporters of HD-DVD Toshiba decided to abandon the production of breeding and research to improve its format.

Blu-rai uses a laser beam color blue with a wavelength of 405 nanometers unlike the red lasers used in DVD players this one with a wavelength of 650nanometers. This along with other developments technology can store substantially more data than DVD on a disc the same size and appearance.

10 Blu-rai gets its name from blue laser beam. The letter "e" of the original word blue was dropped because in some countries cannot register a trade name for a word común. It was developed jointly by a group of technology companies called the Blu-Ray Disc Association led by Sony and Philips.