Becoming Familiar With Blu Ray Disc Player Technology. Some Information About How Everything Works
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Blu-ray (not Blue-ray) also called Blu-ray Disc (BD), is the name associated with a next-generation optical disc format jointly developed from the Blu-ray Disc Association (BDA), a team 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 developed to allow recording, rewriting and playback of high-definition video (HD), as wel as keeping large amounts of information. This data format offers over five times the storage capability associated with traditional DVDs and will hold as much as 25GB on a single-layer disc and 50GB on a dual-layer disc. This added capacity combined with the use of state-of-the-art video and audio codecs will offer consumers an unprecedented HD experience.
Whilst existing optical disc technologies such as DVD, DVDR, DVDRW, and DVD-RAM make use of a red laser to read and write data, the new format employs a blue-violet laser instead, consequently the name Blu-ray. Despite the distinctive type of lasers applied, 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 using a blue-violet laser (405nm) is that it has a shorter wavelength when compared with a red laser (650nm), which makes it possible to concentrate the laser spot with even greater accuracy. This allows data to be packed alot more tightly and stored in less space, so it is possible to fit more data on the disc despite the fact that it’s the same size 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 employing 20 layers.
Blu-ray is currently supported by about 2 hundred of the world’s major consumer electronics, personal pc, recording media, game and also music companies. The format has the benefit of support from all Hollywood studios and many smaller studios as a successor to today’s DVD format. Lots of studios have additionally proclaimed that 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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