The Blue-violet Laser of Blu Ray
Blu Ray technology has been getting some jazz these days. Standing to be the next thing after DVD, Blu Ray discs differ from standard DVDs and CDs, in terms of two major points. First off, Blu Ray technology utilizes a blue-violet laser, while DVD and CD technologies utilize a red hued laser. A second major point would be the fact that Blu Ray discs have more storage capacities over DVD and CDs.
Blu Ray technology, Blu Ray discs and the blue-violet laser, are all the products of the Blu-Ray Disc Association or the BDA. The Blu-Ray Disc Association is primarily composed of major media manufacturers, personal computer system makers, and consumer electronic manufacturers from all over the world. Among its roster would include: Samsung, Sony, Sharp, TDK, Thomson, Dell, Hitachi, Apple, Hewlett Packard, LG, JVC, Panasonic, Pioneer, LG and Philips.
Blu Ray discs are capable of storing up to 25 gigabytes of data, with dual-layer Blu Ray discs capable of storing up to 50 gigabytes of data. Where DVD discs could store up to 4.7 gigabytes of data, with dual-layer DVDs capable of storing up to 8.5 gigabytes of data, Blu Ray discs stand to "out-store" them, impressively. Five DVD contents could be stored into one Blu Ray disc. That is just how impressive Blu Ray is, capacity wise.
The blue-violet laser utilized in Blu Ray technology allows the more precise data reading capability of Blu Ray, as blue has a shorter wavelength compared to red. The same blue-violet laser used in Blu Ray technology also stands as the source for the Blu Ray name: Blue-violet laser, Blu Ray.
Blu Ray discs come in three main formats, no different from the optical disc formats of DVDs and CDs. There is the BD-ROM, the BD-R and the BD-RE. The BD ROM is basically the DVD-ROM version of Blu Ray discs, perfect for the distribution of high definition movies, as well as personal computer software and games for personal computer systems and/or for gaming consoles with Blu Ray support. The BD-R class of Blu Ray discs is the recordable format of Blu Ray discs, similar to the DVD-R or the CD-R discs. The BD-RE is the rewritable type of Blu Ray discs, where users could record data, or high definition movies into them, erase the disc's contents, then rewrite or rerecord data into them once again.
Blue-violet laser, impressive storage capacities, perfect for high definition movies, and perfect for the storage of various digital media files, as well as other data file formats, Blu Ray is sure on its way into becoming the standard which would take the place of DVD.
