Seminar Report on Blu Ray Disc

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‘ ‘ Optical discs share a major part among the secondary storage devices. Bluray disc is a next generation optical disc format. The technology utilizes a blue laser diode operating at a wavelength of 405nm to read and write data. Because of the blue laser it can store enormous amount of data than was ever possible.

Data is stored on a BD in the form of tiny ridges on the surface of an opaque 1.1mm thick substrate. This lies beneath a transparent .1mm protective layer. With the help of Blu-ray recording devices it is possible to record upto 2.5 hrs of very high quality audio and video on a single BD.

Blu-ray also promises some added security, making ways for copyright protections. Bd can have a unique ID written on them to have copyright protection inside the recorded streams.

Blu-ray Disc takes the DVD technology one step further just by usin g a laser with a nice colour.

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