Blu-ray

Sony Blu-ray Player
Blu-ray Disc (BD) is a next-generation optical disc format meant for storage of high-definition video and high-density data. The Blu-ray standard was jointly developed by a group of consumer electronics and PC companies called the Blu-ray Disc Association (BDA). As compared to the HD DVD format, its main competitor, Blu-ray has more information capacity per layer, 25 instead of 15 gigabytes, but may initially be more expensive to produce.

Samsung Blu-ray Writer

The name Blu-ray is derived from the blue-violet laser it uses to read and write to the disc. A Blu-ray Disc will be able to store substantially more data than a DVD, because of the shorter wavelength (405 nm) of the read-laser (DVDs use a 650-nm-wavelength red laser and CD’s 780 nm). Blu-ray unveiled their plans for a Spring 2006 launch at the Consumer Electronics Show (CES) in January 2006. It was expected to be released on May 23, 2006 but the release date has been changed to June 2006.

Sony Blu-ray Disc

After working with the Blu-ray technology, Sony realized that additional effort would be necessary, and announced that the release date of their PlayStation 3 would be postponed until November of 2006. The Blu-ray Disc Association followed suit by also postponing the release date of Blu-ray products in U.S. stores until June of 2006.

Source:WikiPedia

TDK Blu-ray Disc