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Optical disks share a major part among the secondary storage devices.Blu .ray Disc is a next .generation optical disc format. The technology utilizes a blue laser diode operating at a wavelength of 405 nm to read and write data. Because it uses a blue laser it can store enormous more amounts of data on it than was ever possible.
Data is stored on Blu .Ray disks in the form of tiny ridges on the surface of an opaque 1.1 .millimetre .thick substrate. This lies beneath a transparent 0.1mm protective layer. With the help of Blu .ray recording dev ....etc

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BLU RAY DISC seminars


INTRODUCTION


In 1997, a new technology emerged that brought digital sound and video into homes all over the world. It was called DVD, and it revolutionized the movie industry.

In 2006, another technology emerged, that has created a revolution in the field of optical discs and that is called Blu-ray Discs (BD). With their high storage capacity, Blu-ray discs can hold and play back large quantities of high-definition video and audio, a ....etc

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The name Blu-ray is derived from the blue-violet laser it uses to read and write to the chalcogenide disc. A Blu-ray Disc can store substantially more data than a DVD, because of the shorter wavelength (405 nm) of the blue-violet laser (DVDs use a 650-nm-wavelength red laser and CDs use an infrared 780 nm laser), which allows more information to be stored digitally in the same amount of space. In comparison to HD DVD, which also uses a blue laser, Blu-ray has more information capacity per layer (currently 25GB, but test media is up to 100 gigab ....etc

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Blu-ray Disc SEMINAR REPORT



Evolution


VHS: analogDVD: digitalBD: high-definition

Enables recording, rewriting, and playback of high-definition video

Capable of storing information that the DVD and CD are not capable of holding


Foundation

Blu-ray disc (BD) is appropriately named after the blue laser used to write the data

The first blue laser was developed in 1996 by Shuji Nakamura (Nichia Corporation)

In 2002, an alliance wa ....etc

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Seminar Report On Blu-Ray Disc

Submitted by:Ratheesh K
DEPARTMENT OF COMPUTER SCIENCE
COCHIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
KOCHI-682022
ABSTRACT
Blu-ray, also known as Blu-ray Disc (BD) is the name of a next-generation optical disc format jointly developed by the Blu-ray Disc Association (BDA), a group of leading consumer electronics and PC companies (including Apple, Dell, Hitachi, HP, JVC, LG, Mitsubishi, Panasonic, Pio ....etc

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