How Blu-Ray Media Has Superseded DVD-R Media.
Blu-ray media has superseded DVD-R media as the preferred medium for data storage. Using blue-violet laser that has shorter wavelength than the red laser used in the DVD-R media, the technology provides considerable data storage advantages.
Blu-ray media is the next generation optical disc technology that has superseded DVD-R media. The media has been developed by the Disc Association, comprising the world's leading consumer electronics, computer and media manufacturers.
Blu-ray uses a blue-violet laser which has a shorter wavelength than the red laser used in DVD-R, which enables data to be packed much more densely, resulting in the higher capacities of Blu-ray discs. The width of the beam spot that hits the media disk surface depends on the wavelength of the laser. As the wavelength increases, the beam spot will become wider, while when it decreases, the width of the beam spot narrows. This media uses a narrower beam spot, making it possible to store more data on the disc.
Blu-ray media has considerable advantages over other types of optical discs, especially in capacity and quality. It is used most effectively for recording, rewriting and playback. The recording surface has a hard coating, offering an extra level of protection and making the discs highly resistant to scratches and fingerprint smudges.
Single layer Blu-ray disks can hold 25GB of data, while Dual-layered disks can store 50GB of data. A dual-layer disk can store up to nine hours of High Definition video and 23 hours of Standard Definition video. The media supports MPEG-2, MPEG-4 AVC and SMPTE VC1. It also supports a wide range of audio codecs that include DTS-HD master audio, Dolby True HD, Dolby Digital Plus and Dolby Digital.
The transfer speed of Blu-ray media is three times faster than DVD. With these discs, the data transfer rate is 36 Mb/s while with DVD, the transfer rate is 11.08 Mb/sec. DVD media players support 28 MB/s for audio playback and 9.8 MB/s for video playback, making a total of 10.08 Mbps. The combined bit-rates of video and audio on DVD cannot exceed 10.08 MB/s. Blu-ray media on the other hand, supports multiple players, making it possible to extend its recording capacity. In future, the capacity of the Blu-ray disc is expected to increase somewhere in the range of 100GB to 200GB, as more layers are added.
Whether it is the laser wavelength, storage capacity, video quality and bit rate, the protective coating, data transfer rate or audio and video codec support, the Blue-ray disc has obvious improvements over the more traditional DVD disc. Sound and picture quality is considerably better. The user can simultaneously record and playback, create playlists, search and browse recorded programs quickly and randomly access any position on the disk.
If you use the media from reputable manufacturers, you can be assured of the best recording, reading, and duplicating results. The media is available in thermal and inkjet printable surfaces. Some discs are produced exclusively for professional authoring and archiving offering improved data accuracy. Such discs are produced to be highly resistant to oxidization and corrosion.
You can visit the website of one such manufacturer of Blu ray media [http://www.microboards.com/Products/Default.aspx?id=3036] and request a quote. When buying discs from here, you are assured of top quality and a superior product of the latest technology. Select from an extensive range of products.
The writer of this article is currently associated with Microboards Technology, an international division of a Japanese CD engineering firm that provides blank Blu ray discs and other optical media technology.
Blu-ray media is the next generation optical disc technology that has superseded DVD-R media. The media has been developed by the Disc Association, comprising the world's leading consumer electronics, computer and media manufacturers.
Blu-ray uses a blue-violet laser which has a shorter wavelength than the red laser used in DVD-R, which enables data to be packed much more densely, resulting in the higher capacities of Blu-ray discs. The width of the beam spot that hits the media disk surface depends on the wavelength of the laser. As the wavelength increases, the beam spot will become wider, while when it decreases, the width of the beam spot narrows. This media uses a narrower beam spot, making it possible to store more data on the disc.
Blu-ray media has considerable advantages over other types of optical discs, especially in capacity and quality. It is used most effectively for recording, rewriting and playback. The recording surface has a hard coating, offering an extra level of protection and making the discs highly resistant to scratches and fingerprint smudges.
Single layer Blu-ray disks can hold 25GB of data, while Dual-layered disks can store 50GB of data. A dual-layer disk can store up to nine hours of High Definition video and 23 hours of Standard Definition video. The media supports MPEG-2, MPEG-4 AVC and SMPTE VC1. It also supports a wide range of audio codecs that include DTS-HD master audio, Dolby True HD, Dolby Digital Plus and Dolby Digital.
The transfer speed of Blu-ray media is three times faster than DVD. With these discs, the data transfer rate is 36 Mb/s while with DVD, the transfer rate is 11.08 Mb/sec. DVD media players support 28 MB/s for audio playback and 9.8 MB/s for video playback, making a total of 10.08 Mbps. The combined bit-rates of video and audio on DVD cannot exceed 10.08 MB/s. Blu-ray media on the other hand, supports multiple players, making it possible to extend its recording capacity. In future, the capacity of the Blu-ray disc is expected to increase somewhere in the range of 100GB to 200GB, as more layers are added.
Whether it is the laser wavelength, storage capacity, video quality and bit rate, the protective coating, data transfer rate or audio and video codec support, the Blue-ray disc has obvious improvements over the more traditional DVD disc. Sound and picture quality is considerably better. The user can simultaneously record and playback, create playlists, search and browse recorded programs quickly and randomly access any position on the disk.
If you use the media from reputable manufacturers, you can be assured of the best recording, reading, and duplicating results. The media is available in thermal and inkjet printable surfaces. Some discs are produced exclusively for professional authoring and archiving offering improved data accuracy. Such discs are produced to be highly resistant to oxidization and corrosion.
You can visit the website of one such manufacturer of Blu ray media [http://www.microboards.com/Products/Default.aspx?id=3036] and request a quote. When buying discs from here, you are assured of top quality and a superior product of the latest technology. Select from an extensive range of products.
The writer of this article is currently associated with Microboards Technology, an international division of a Japanese CD engineering firm that provides blank Blu ray discs and other optical media technology.
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