10-01-2012, 02:16 PM
BLU RAY DISC seminars
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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, as well as photos, data and other digital content.
High-definition video
high-definition (HD) video generally refers to any video system of higher resolution than standard-definition (SD) video, most commonly at display resolutions of 1280×720 or 1920×1080,
WHO DEVELOPED BLU RAY?
The Blu-ray Disc format was jointly developed by the Blu-ray Disc Association (BDA), a group of leading consumer electronics, personal computer and media manufacturers, with more than 180 member companies from all over the world.
Why the name Blu-ray?
The name Blu-ray Disc is derived from the blue-violet laser used to read and write this type of disc. The name is a combination of "Blue" (blue-violet laser) and "Ray" (optical ray).
Because of its shorter wavelength (405 nm), substantially more data can be stored on a Blu-ray Disc than on the DVD format, which uses a red (650 nm) laser. A Blu-ray Disc can store 50 GB, almost six times the capacity of a DVD
