Definition Dvd

Posted in DVD & Blue Ray by Ted on November 25, 2010

Definition Dvd

Properties Blu-ray Disc Dvd

The specific design of Blu-ray DVDs format reduces the manufacturing cost. Two discs of 0.6 mm was molded in the manufacture of traditional DVDs. The recording layer is between 0.6 mm discs. The manufacturing process of DVDs is done carefully so that the birefringence can be avoided. the recording layer is added between the two discs molded then stick. injection molding process in disc format Blu-ray is done on a Single Disc of 1.1 mm. So this helps to reduce the cost of production. This saving cost disc format Blu-ray offsets the additional cost layer of protection.

Compared to the disk DVD, the transfer speed Blu-ray format, is much faster. The transfer speed of the DVD format is 10 MB / s, while the format Blu-ray disk is 36 MB / s. 25 GB material can be recorded on one side of Blu-ray DVD. At first, the read-only format CD and DVD have been introduced. Subsequently, rewritable formats and record its introduced. The different formats of Blu-ray BD-R (recordable) and BD-RE (rewritable), BD-RW (rewritable) and BD-ROM (read only). BD-R and BD-RW are ideal for PC data storage, while the other BD-ROM and BD-RE are designed specifically for HD recording prerecorded content, respectively. New blue-violet laser has been introduced in the Blu-ray optical disc standard, while DVD and CD laser red is used to read and write data.

So with the same amount of hard surface such as DVD, bluray disk can contain large amounts of data (25 GB single layer). Blu-ray name was given to this format media on the basis of its blue laser. The "blue" word came from the blue-violet diode and the other "spoke" word was taken optical ray. The letter "E" was dropped and a new brand "Blu-ray" was recorded. Blu-ray DVD drive is also known as BD. Disc Format Blu-ray was developed to enable rewriting, recording and playback of high definition HDV video. Blu-ray disc recordable DVD can hold large amounts of data.

Blu-ray Disc Association is the founder of the Blu-ray, and now the members of this association in the world are nearly 180 companies. Association Blu-ray Disc Board is Sony Corporation, HP, Apple, Dell, LG Electronics, Matsushita Electric Industrial Co., Hitachi, Pioneer Corporation, Mitsubishi Electric Corporation, Samsung Electronics, Royal Philips Electronics, Sun Microsystems, Sharp Corporation, Twentieth Century Fox, Warner Bros. Entertainment, Thomson Multimedia, Walt Disney Pictures and TDK. Combo discs HD DVD are also available that one side is composed of standard DVD, while the other is the high definition HD. All video formats including MPEG-4/AVC, VC-1 and MPEG-2 are supported by the BluRay disc format.

Ability to regulate the DVD is 4.36 GB and bluray disk capacity single layer is approx. 25 GB. A double layer bluray store 50 GB data. All major types of audio codec is compatible with Blu-ray BD including eight channels of audio (uncompressed). Audio codecs compatible with the BluRay disc format including Dolby Digital (DD), DTS Digital Surround, DTS-Master Audio HD, Dolby TrueHD audio, high resolution, Dolby Digital Plus (DD +) and LPCM (Linear PCM).

About the Author

Bluray DVD disk is also known as BD. Blu-ray disk format was developed in order to enable rewriting, recording, and playback of high-definition video HDV. Blu-ray recordable Dvd Disc can hold large amounts of data.

Jessica McIntosh (Marketing Manager)
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Email: jessica@tape4backup.com

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