Blu Rays abbreviated as BD are a new optical disc format developed by the Blu Ray Association. In 1992 inventor Shuji Nakamura from Japan came up with the first compatible blu ray disk. It was formatted to be able to play back, rewind, and record high definition movies. Blu Rays also store large amount of information. Unlike DVD which use a red laser to scan the disk and play the movie, blu rays use a blue violet laser. Unlike DVDs blu rays can be made backward compatible. The blue violet laser has a shorter wave length allowing it to have great precision with the images being delivered. It also allows a larger amount of data to be stored on a smaller devise. Today, blu ray is supported by the top 200 consumers electronics. Blu rays have expanded the way we can view movies, in the way that TV aren't the only way of viewing HD videos and television broadcasts. Now through blu rays we can watch movies with the precision of high definition.
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