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Yes, it really is ray not the blue-ray. The letter ‘e’ was intentionally avoided to really make it suited to trademarking. You will find, the Blu-ray is much more advanced far better than a DVD. Everybody was very excited when DVDs has been around since in 1997 making it possible playing digital audio/video during our houses. Now, everyone is referring to the modern technology which can be even finer quality than DVDs that has been around since in 2006.

After VCR’s and DVDs, advances in technology brought us Blu-ray technology. The name blu-ray hails from the fact that a blue (actually blue-violet) laser is utilized for reading and writing Blu disc.ray technologies are not an achievement of any single company. Several prominent manufacturers like Apple, Dell, Sony, Sun Microsystems etc formed ray Disc Association which developed this technology.

Blu-ray discs are superior to DVDs from the following factors:

(a) More storage capacity A single-sided standard 12 cm DVD can store 4.7 GB of knowledge whereas the identical size single layer ray disc can store 25 GB of internet data which can be almost half a dozen times greater than a DVD. A double layer ray disc can store 50 GB of data. Similar to DVDs we could get mini size ray discs also with all the size 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) Video and audio are tinkered with more clarity when compared with DVD.

The following are the factors which can be responsible to embed more data right into a ray disc:

(a) Unlike DVDs which rely on red lasers operating at 650 nm to read and writing data, Blu-ray discs rely on blue laser that operates at 405 nm. Because ray technologies are with all the short wavelength laser in comparison with DVD, it might embed more data in to the disc which includes the identical 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 videos and PC data storage.
(b) BD-ROM: Read only format for pre-recorded contents like hd 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 picture qualities.
*You can record an application while playing another one.
*The player automatically mission to find the empty space to record new programs on the disc to prevent overlapping of programs.
*You can randomly head to any point on the disc.

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