Learning About the Blu-ray Disc
Blu-ray currently holds the monopoly for high definition discs, although most people would not complain due to its fair price and perfect quality. With a high definition television, anybody can experience the power of Blu-ray.
Blu-ray was developed by the Blu-ray Disc Association, which is a conglomerate of around one hundred eighty corporations, including major film studios like Warner Bros. and computer giants like Apple. The format was slowly developed since 2000 and took off faster in 2003, finally being finished in 2004.
The most important thing about the Blu-ray disc is its storage capacity. The amount of data a disc can hold establishes its capabilities, so the more you have, the better. A standard Blu-ray disc can hold 25GB of data.
The storage capacity of Blu-ray discs can be increased by adding more layers to the disc itself. Each layer adds 25MB of space, and as of now, only single and dual-layer discs exist, so the maximum capacity is 50GB. In the future, as many as eight layers could be installed in each disc, meaning the maximum capacity would reach two hundred gigabytes!
The reason Blu-ray discs are so much more capable than DVDs is because of the laser they utilize. DVDs are read by a red laser, but Blu-rays are decoded through a shorter blue laser.
The current standard speed for Blu-ray discs is known as 1x. As movies become more defined, rates can be increased to 10x or 12x, but that is difficult to reach due to limitations in hardware.
Since the DVD format will be out for a good while longer, it is being proposed that a Blu-ray/DVD disc be created, which could be used in either a Blu-ray player or DVD player. It probably would not be worth it, though, since Blu-ray is going to eventually replace the DVD, although it may take as long as a decade.
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