sure, it is ray not the blue-ray. The letter ‘e’ become deliberately avoided to make it suitable for trademarking. And sure, the Blu-ray is greater superior and higher than a DVD. each one turned into so excited whilst DVDs came into lifestyles in 1997 which made it possible gambling digital audio/video even in our houses. Now, humans are speaking about the new generation which is even superior to DVDs that got here into life in 2006.After VCR’s and DVDs, advances in generation added us Blu-ray era. The call blu-ray is derived from the fact that a blue (sincerely blue-violet) laser is used for analyzing and writing Blu disc.ray technology is not an achievement of any unmarried agency. a set of distinguished companies like Apple, Dell, Sony, solar Microsystems and so forth fashioned ray Disc affiliation which advanced this generation.Blu-ray discs are superior to DVDs within the following factors:(a) greater storage potential A single-sided general 12 cm DVD can save four.7 GB of records whereas the equal length single layer ray disc can store 25 GB of facts which is sort of 5 times extra than a DVD. A double layer ray disc can shop 50 GB of data. similar to DVDs we are able to get mini size ray discs additionally with the size of 8 cm. This mini disc with unmarried layer capability can shop 7.eight GB and twin layer potential can keep 15.6 GB.
(b) better facts switch rate of 36 Mbps and,
(c) Audio and video are performed with extra readability as compared to DVD.the following are the elements that are responsible to embed greater information right into a ray disc:(a) opposite to DVDs which depend on purple lasers operating at 650 nm for analyzing and writing records, Blu-ray discs depend upon blue laser that operates at 405 nm. because the ray generation is the usage of the short wavelength laser compared to DVD, it may embed extra facts into the disc which has the equal size of a DVD.
(b) The thickness of cover layer become decreased.
(c) Numerical aperture became increased to zero.eighty five.different formats of ray disc:(a) BD-R: Recordable layout for HD video recording and computer facts storage.
(b) BD-ROM: study simplest layout for pre-recorded contents like excessive definition movies, video games.
(c) BD-RW: Rewritable layout for pc statistics garage.
(d) BD-RE: Rewritable layout for HD video recording and pc facts garage.The distinct capabilities of Blu-ray gamers are:*you could create the playlists.
*you can make adjustments to the recorded video and shuffle their order.
*you could file excessive-definition tv (HDTV) with progressed sound and photograph traits.
*you could record a application at the same time as playing every other one.
*The participant robotically searches for the empty area to report new programs on the disc to prevent overlapping of packages.
*you can randomly visit any point at the disc.