Blu-Ray-Technology - blu ray recorder, blu disc and bdr player, movies, games and reviews.

Current Archive

• Blu Ray Technology

  

  The name Blu-ray Disc is derived from the blue-violet laser used to read and write this type of disc. Because of its shorter wavelength (405 nm), substantially more data can be stored on a Blu-ray Disc than on the DVD format, which uses a red, 650 nm laser. A single layer Blu-ray Disc can store 25 GB, over 5 times the size of a single layer DVD at 4.7 GB. A dual layer Blu-ray Disc can store 50 GB, almost 6 times the size of a dual layer DVD at 8.5 GB.
  
  
  
  Blu-ray Disc is similar to PDD, another optical disc format developed by Sony (which has been available since 2004) but offering higher data transfer speeds. PDD was not intended for home video use and was aimed at business data archiving and backup.
  
  

  
  
  Technical specifications

  
  
  * About 9 hours of high-definition (HD) video can be stored on a 50 GB disc.
  * About 23 hours of standard-definition (SD) video can be stored on a 50 GB disc.
  * On average, a single-layer disc can hold a High Definition feature of 135 minutes using MPEG-2, with additional room for 2 hours of bonus material in standard definition quality. A dual layer disc will extend this number up to 3 hours in HD quality and 9 hours of SD bonus material.
  
  
  read more | Link | Trackback | 0 Comments
  Friday, July 06, 2007

0 Comments:

Post a Comment

<< Home

Previous Posts   Blu-Ray sales boosted by PS3 Friday, July 06, 2007 Toshiba: HD DVD Delivers Advanced Content and Inte... Tuesday, July 03, 2007 Tuesday, July 03, 2007 Content Protection Licensing Program launched by B... Tuesday, July 03, 2007 Samsung - Blu Ray DVD Player Tuesday, July 03, 2007 Aleratec 20 Free Blu-ray BD-R Discs with Copy Crui... Thursday, June 28, 2007 New MicroBoards GX AutoPrinter Monday, June 25, 2007 Advanced Media Inc. Brings Certified RIDATA Brand ... Tuesday, June 05, 2007 PS3 Boosts European Blu-ray Sales Tuesday, May 22, 2007 Funai to produce inexpensive Blu-ray players Tuesday, May 22, 2007 Subscribe to the blu-ray-technology News Feed