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Blu-Ray
Terminology | Dictionary | Explanation

The blu-ray disc is a next-generation optical disc format meant for high definition video (HD) and high density data storage, and is one of two competing standards for HD optical media. Its competitor is HD-DVD. A Blu-ray disc can store substantially more data than a DVD, because of the blue laser. A Blu-ray disc can hold up to 25GB, a dual layer can hold up to 50 GB. The name Blu-ray is derived from the blue-violet laser used to read and write this type of disc. The Blu-ray disc movie region codes differ from the DVD region codes. The picture on the right of the screen shows the Blu-ray regions.

Region	Coverage
A	North, Central and South America, Japan, North and South Korea, Southeast Asia, Taiwan, Hong Kong
B	Europe, Middle East, Africa, Australia, New Zealand, Greenland, French territories
C	Russia, Central and South Asia, India, Mainland China, Pakistan, Bangladesh, Nepal

The video is encoded with MPEG-2, MPEG-4 AVC (H.264), or VC-1. The Blu-ray disc format uses AACS (Advanced Access Content System) for protection. Bluray is supported by Sony, Dell, Hewlett-Packard, Hitachi, LG, Panasonic, Mitsubishi, Philips, Pioneer, Samsung, Sharp, TDK and Thomson.

The first Blu-ray's were released on the 20th of June 2006. These movies were The Fifth Element, XXX, 50 First Dates, The Terminator, King Arthur, House of Flying Daggers, and Underworld: Evolution.

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