Blu-Ray is an secondary storage device like DVD which is used to store data .The Abbreviated form of Blu-Ray is blue laser used to read the disc in this we can store huge amount of data rather than DVD.This was developed by Blu-Ray disc association in accordance with Sony corporation in October 2000.
In 2006 only it has been officially released. It is available in three layers single layer,dual layer and triple layer. single layer has storage capacity of 25 GB where as dual layer has 50 GB and triple layer has 100 GB as storage. A separate Blu-Ray Media player needed to play this Blu-Ray formats. As this has high storage capacity its reading and writing capacity higher than DVD's this show as in a High definition pixel rates up to 1920X1080 p with Aspect Ratio 16:9.
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