Most people doesn't know much about Blu Ray Disc's. Mostly their knowledge is closed in few facts: that one single disc stores 25 GB or 50 GB if it's a double layer, which is about 5 or 10 times the capacity of DVD and gives the highest quality video, looks like DVD disc. And what do you know about Blu Ray?
If your answer is 'not much' don't worry. We can change that easily and harmless. Just read this article and know most interesting and most important facts about this amazing disc!
Intro
'Blu Ray' name comes from the colour of the laser that reads and writes this type of disc – blu laser. Because the wavelength of this laser is shorter than the red one, which is used to DVD format, more data can be stored at the Blu Ray DISC. Consumer got to know this kind of disc in 2006 but it was known earlier as a format od programs released in the TV. In short time Blu Ray won a war with HD DVD format.
Compatibility
As it was said, at first Blu Ray appeared to the world as a format of TV programs, films. Those specifications were defined in 2003. Blu-ray Disc ROM format specification was defined in 2004. As a result, people can play home-recorded discs on all of their Blu-ray Disc equipment; there are no playback compatibility issues as with rewritable DVD formats. The Video Distribution format was widely expanded to offer content producers a full range of additional features.
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Audio
The Blu Disc ROM format for movie distribution supports various advanced audio codecs. Each person can choose the most suitable format for a particular application. The high capacity and data rate of Blu-ray Disc allow for extreme high quality audio in up to 8 channels, it's accompanies High Definition video. Final audio specification details are still being determined.
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Graphic
There are two graphic planes available. First is, assigned to video-related, frame accurate graphics, mostly subtitles. The second one is assigned to interactive graphical elements, such as buttons or menus. For both planes, various wipes, fades and scroll effects are available, for example to present a menu. As it comes to button graphics they can be in three states – normal, active, selects, they support 256 color full resolution graphics and animation. Buttons can be called and removed during video playback.
Internet connection
User of Blu Ray Disc may connect to the disc publisher's web site to unlock certain content on the disc or dynamically display certain info, like for example theater playing schedules for a movie, on the screen. The disc's program may be extended with JPEG pictures or audio fragments downloaded from the Internet. Such information may be copied and given to a friends thanks to blu ray duplication.
Conclusion
The Blu-ray Disc format for Movie Distribution offers two flexible profiles for the creation of titles. It was designed to allow for the streamlined development of Blu-ray Disc (HD) and DVD-Video (SD) titles at the same time, if needed. Basic menus and navigation can be identical.
Blu Ray is a revolution in technological market. Not even most sophisticated solutions in DVD as custom dvdr, mini dvd, custom made packaging or dvd design won't defeat this disc.
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