• Day Schaefer posted an update 6 months ago

    Yes, it is ray not the blue-ray. The letter ‘e’ was intentionally avoided to make it ideal for trademarking. You will find, the Blu-ray is a lot more advanced and than the usual DVD. Every one was excited when DVDs came into existence in 1997 which made it possible playing digital audio/video even during our houses. Now, everyone is discussing the newest technology which is even more advanced than DVDs that launched in 2006.

    After VCR’s and DVDs, advances in technology brought us Blu-ray technology. The name blu-ray hails from the reality that a blue (actually blue-violet) laser is utilized to read by and writing Blu disc.ray technology is no achievement associated with a single company. A group of prominent manufacturers like Apple, Dell, Sony, Sun Microsystems etc formed ray Disc Association which developed fractional treatments.

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

    (a) More storage capacity A single-sided standard 12 cm DVD can store 4.7 GB of data whereas exactly the same size single layer ray disc can store 25 GB of internet data which can be almost more greater DVD. A dual layer ray disc can store 50 GB of data. Just like DVDs we can get mini size ray discs also with the sized 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 useage rate of 36 Mbps and,

    (c) Audio and video are played with more clarity compared to DVD.

    Are mainly the factors which are responsible to embed more data in to a ray disc:

    (a) Contrary to DVDs which depend on red lasers operating at 650 nm to read and writing data, Blu-ray discs rely on blue laser that operates at 405 nm. Since the ray technologies are using the short wavelength laser compared to DVD, it could embed more data in the disc containing the same size a DVD.

    (b) The thickness of canopy layer was decreased.

    (c) Numerical aperture was increased to 0.85.

    Different formats of ray disc:

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

    The exclusive popular features of Blu-ray players are:

    *You can make the playlists.

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

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

    *You can record a plan while playing one more.

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

    *You can randomly go to any point on the disc.

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