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Blu-ray, also referred to as Blu-ray Disc (BD), is a name associated with a next generation optical disc format. It has the same physical proportions as standard DVDs and Compact disks, however offers more than 5 times the actual storage capability of standard DVDs, holding as much as 27 GB of data on a single-layer disc, that is more than Two hours of high definition video or even about 13 hours of standard video, and as much as Fifty Gigabite on a dual-layer disc. Present advancements by Pioneer have pushed the storage potential to 500GB on a solitary disc by using 20 layers.

This added capacity merged jointly with the usage of advanced video and also audio codecs provides customers an unprecedented HD experience. Moreover, extras such as bonus material and also special features could be included in high quality within the same disc, therefore there is no requirement for separate bonus discs to go with the film title.

Blu-ray was collectively developed by the Blu-ray Disc Association (BDA), a collection of the world's best consumer electronics, personal computer and also media manufacturers, such as Dell, Apple, HP, Hitachi, JVC, Mitsubishi, Pioneer, LG, Panasonic, Philips, Sony, Samsung, Sharp, Thomson and TDK. It was created to permit recording, rewriting and playback of high-definition video (HD), and also keeping considerable amounts of data.

Although existing optical disc technologies like DVD make full use of a red laser to read and also write data, the Blu-ray structure utilizes a blue-violet laser in its place. The benefit of utilizing a blue-violet laser (405 nm) is that it's got a smaller wavelength than the usual red laser (650 nm), so that it is achievable to focus the laser area with perhaps greater accuracy. That enables data to be packed much more closely and saved in a reduced amount of space, so it's possible to fit much more files on the disc. However, regardless of different type of lasers utilized, Blu-ray products can easily be made backwards compatible with CDs and also DVDs through the usage of a BD/DVD/CD compatible optical pickup unit.

Throughout the format war over high-definition optical discs, Blu-ray Disc competed with the High definition DVD format. Yet, on February 19, 2008, Toshiba, the main organization supporting High definition DVD, declared that it would certainly no longer produce, make, or even market High definition DVD players and recorders, leading almost all other HD DVD organizations to follow suit, and therefore effectively concluding the format war. Blu -ray is currently supported by about 200 of the world's major pc, consumer electronics, recording media, music and video game companies. The format has the advantage of support coming from all Hollywood studios and different smaller studios to be a successor to the current DVD format. Key blank media companies for instance TDK also support the Blu-ray Disc format as the successor to DVD.

Blu-ray offers some of the strongest copy protection procedures ever created for any consumer format, rendering it the most effective choice for just about any content publisher needing assurance that their precious assets are safeguarded from piracy. The format has a highly effective copy protection system, which not only relies on execution on the playback device, but this includes safeguards at replicator level, which may be strictly controlled. As opposed to the voluntary implementation of CSS protection in DVD, the copy protection mechanism for Blu-ray Disc is obligatory and also will be governed by strict licensing processes.

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