Being Familiar With Blu Ray Disc Player Technology. Some Information On How All Of It Works

Blu-ray (not Blue-ray) also called Blu-ray Disc (BD), is a name of a next-generation optical disc format jointly developed from the Blu-ray Disc Association (BDA), a group of the world's primary consumer electronics, PC and media manufacturers (including Apple, Dell, Hitachi, HP, JVC, LG, Mitsubishi, Panasonic, Pioneer, Philips, Samsung, Sharp, Sony, TDK and Thomson).

The format was created to enable recording, rewriting and playback of high-definition video (HD), as wel as keeping large amounts of data. The format provides more than five times the storage capability of traditional DVDs and can carry as much as 25GB on a single-layer disc and 50GB on a dual-layer disc. This extra capacity combined with the use of advanced video and audio codecs offer consumers an unprecedented HD experience.

Whilst present optical disc technologies such as DVD, DVDR, DVDRW, and DVD-RAM rely on a red laser to read and write data, the new data format employs a blue-violet laser instead, consequently the name Blu-ray. Despite the distinctive kind of lasers employed, A Blu ray disc player can conveniently be made backwards compatible with CDs and DVDs through the use of a BD/DVD/CD compatible optical pickup unit. The benefit of applying a blue-violet laser (405nm) is that it has a shorter wavelength when compared with a red laser (650nm), which makes it possible to focus the laser spot with even greater accuracy. This allows data to be packed extra tightly as well as stored in less space, thus it's possible to fit more data on the disc while it's the same dimensions as a CD/DVD.

This together with the change of numerical aperture to .85 is what enables Blu ray Dvds to hold 25GB/50GB. Recent development by Pioneer has pushed the storage capacity to 500GB on a single disc by using 20 layers.

Blu-ray is presently supported by about 200 of the world's major consumer electronics, personal personal computer, recording media, game as well as music companies. The format also has support from all Hollywood studios and countless smaller studios as a successor to today's DVD format. Numerous studios have also announced they will begin releasing new feature films on Blu ray Dvds as well as a continuous slate of catalog titles every month. .

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