Specifics It's Important To Know About Blu-Ray Technology
Yes, it is ray not the blue-ray. The letter 'e' was intentionally avoided to restore suited to trademarking. And yes, the Blu-ray is a lot more advanced and much better than a DVD. Everybody was very excited when DVDs came into existence in 1997 which made it possible playing digital audio/video even during our homes. Now, everyone is referring to the newest technology which can be even better than DVDs that launched in the year 2006.
After VCR's and DVDs, advances in technology brought us Blu-ray technology. The name blu-ray comes from the fact a blue (actually blue-violet) laser is employed with and writing Blu disc.ray technologies are not an achievement of the single company. A gaggle of prominent companies like Apple, Dell, Sony, Sun Microsystems etc formed ray Disc Association which developed fractional laser treatments.
Blu-ray discs can be better than DVDs in the following factors:
(a) More storage capacity A single-sided standard 12 cm DVD can store 4.7 GB of information whereas exactly the same size single layer ray disc can store 25 GB of data that's almost half a dozen times greater DVD. A double layer ray disc can store 50 GB of information. Similar to DVDs we are able to 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 rate of 36 Mbps and,
(c) Car stereo are used more clarity in comparison to DVD.
Listed below are the factors that are responsible to embed more data in a ray disc:
(a) Despite DVDs which be determined by red lasers operating at 650 nm for reading and writing data, Blu-ray discs depend upon blue laser that operates at 405 nm. As the ray technologies are while using short wavelength laser in comparison to DVD, it may embed more data into the disc which includes the same sized 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 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 create the playlists.
*You could make changes towards the recorded video and shuffle their order.
*You can record high-definition television (HDTV) with improved sound and picture qualities.
*You can record a program while playing another.
*The player automatically mission to find the empty space to record new programs for the disc to stop overlapping of programs.
*You can randomly visit any point for the disc.
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