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Yes, it can be ray not the blue-ray. The letter ‘e’ was intentionally avoided to restore ideal for trademarking. Company, the Blu-ray is much more advanced and much better than the usual DVD. Each one am excited when DVDs has been around since in 1997 making it possible playing digital audio/video even in our houses. Now, individuals are speaking about the modern technology which is even superior to 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 a blue (actually blue-violet) laser can be used to read and writing Blu disc.ray technology is no achievement of any single company. A group of prominent companies like Apple, Dell, Sony, Sun Microsystems etc formed ray Disc Association which developed this technology.

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

(a) More storage capacity A single-sided standard 12 cm DVD can store 4.7 GB of data whereas the same size single layer ray disc can store 25 GB of knowledge which is almost more greater than a DVD. A double layer ray disc can store 50 GB of information. Comparable to DVDs we can easily get mini size ray discs also together with the height and width 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 rate of 36 Mbps and,

(c) Car stereo are enjoyed more clarity in comparison to DVD.

Listed below are the standards which can be responsible to embed more data in to a ray disc:

(a) Despite DVDs which depend upon red lasers operating at 650 nm to read and writing data, Blu-ray discs depend upon blue laser that operates at 405 nm. Because the ray technology is using the short wavelength laser in comparison with DVD, it could embed more data to the disc containing the same size 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 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 features of Blu-ray players are:

*You can make the playlists.

*You will 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 another one.

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

*You can randomly visit any point about the disc.

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