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  • Hvidberg Boje posted an update 3 months, 3 weeks ago

    Yes, it’s ray not the blue-ray. The letter ‘e’ was intentionally avoided making it well suited for trademarking. Company, the Blu-ray is a lot more advanced and compared to a DVD. Each one am excited when DVDs had become in 1997 which made it possible playing digital audio/video even just in our houses. Now, everyone is discussing the modern technology that is even finer quality than DVDs that launched in 2006.

    After VCR’s and DVDs, advances in technology brought us Blu-ray technology. The name blu-ray comes from the truth that a blue (actually blue-violet) laser is employed for reading and writing Blu disc.ray technology is no achievement of any single company. A group of prominent the likes of Apple, Dell, Sony, Sun Microsystems etc formed ray Disc Association which developed this technology.

    Blu-ray discs can beat DVDs inside the following factors:

    (a) More storage capacity A single-sided standard 12 cm DVD can store 4.7 GB of internet data whereas precisely the same size single layer ray disc can store 25 GB of internet data that is almost five times regarding green DVD. A double layer ray disc can store 50 GB of data. Just like DVDs we could get mini size ray discs also with all the size of 8 cm. This mini disc with single layer capacity can store 7.8 GB and dual layer capacity can store 15.6 GB.

    (b) Higher data transfer rate of 36 Mbps and,

    (c) Video and audio are used more clarity in comparison with DVD.

    Listed below are the factors that happen to be responsible to embed more data in a ray disc:

    (a) As opposed to DVDs which depend upon red lasers operating at 650 nm to read and writing data, Blu-ray discs depend on blue laser that operates at 405 nm. As the ray technologies are using the short wavelength laser compared to DVD, it could embed more data to the disc which includes exactly the same height and width of a DVD.

    (b) The thickness of cover layer was decreased.

    (c) Numerical aperture was increased to 0.85.

    Different formats of ray disc:

    (a) BD-R: Recordable format for HD videos and PC data storage.

    (b) BD-ROM: Read only format for pre-recorded contents like high definition movies, games.

    (c) BD-RW: Rewritable format for PC data storage.

    (d) BD-RE: Rewritable format for HD video recording and PC data storage.

    The exclusive features of Blu-ray players are:

    *You can cause the playlists.

    *You could make changes for the recorded video and shuffle their order.

    *You can record high-definition television (HDTV) with improved sound and movie qualities.

    *You can record a plan while playing another one.

    *The player automatically looks for the empty space to record new programs about the disc to prevent overlapping of programs.

    *You can randomly check out any point for the disc.

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