Blu-ray, also known as Blu-ray Disc (BD) is an optical disc storage medium developed by Blu-ray Disc Association. Blu-ray format was primarily developed to enable recording, rewriting and playback of high-definition video (HD), as well as storing large amounts of data.
Sony’s Blu-ray is emerging as the clear winner of the years-long format war over next-generation DVDs. Toshiba announced that it will no longer develop, make or market HD DVD players and recorders.
HD-DVD and Blu-ray both deliver crisp, clear high-definition video and sound, but are incompatible with each other. There are expensive players that play both formats.
Wal-Mart Stores Inc decided to exclusively sell high-definition DVDs in the Blu-Ray format,which could be a heavy blow to the rival HD DVD technology backed by Toshiba Corp.
In a statement on its Web site, Wal-Mart said that over the next few months it will phase out sales of HD DVD systems and discs. By June, it will sell only products in the Blu-ray format which was developed by Sony Corp.