Geting A Grasp On Blu Ray Disc Player Technology. Some Information On How All This Works
Blu-ray (not Blue-ray) often known as Blu-ray Disc (BD), is a name associated with a next-generation optical disc format jointly created by the Blu-ray Disc Association (BDA), a team of the world’s major 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 permit recording, rewriting and playback of high-definition video (HD), as wel as storing large amounts of information. This format offers over five times the storage capacity associated with traditional DVDs and will carry around 25GB on the single-layer disc and 50GB on a dual-layer disc. This added capacity combined with the use of sophisticated video and audio codecs offer consumers an unprecedented HD experience.
While present optical disc technologies such as DVD, DVDR, DVDRW, and DVD-RAM rely on a red laser to read and write data, the new structure employs a blue-violet laser instead, hence the name Blu-ray. Despite the distinct type of lasers utilized, A Blu ray disc player can simply 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 these have a shorter wavelength than a red laser (650nm), which makes it possible to concentrate the laser spot with even greater accuracy. This enables data to be packed extra tightly and also stored in less space, therefore it is possible to fit extra 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 presently supported by about 2 hundred of the world’s leading consumer electronics, personal pc, recording media, video game and also music companies. The format has the benefit of support from all Hollywood studios and countless smaller studios as a successor to today’s DVD format. Many 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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