Blu-ray Player and Movie Guide

Blu-ray technology has become the industry standard for High Definition movies with the announcement that Toshiba will no longer manufacture HD-DVD players and studios are making preparations for the change.

Average consumers had become confused in this recent “format war” between Blue ray and its rival format HD-DVD in the high definition home video market. But with the recent announcements Blu-ray has now become the standard for high definition home movies.

What is Blu-ray Blu-ray refers to the blue-violet laser used to read and write its discs. The blue laser used to manufacture the disc has a shorter wavelength than the red laser that standard DVDs use, offering six times the storage capacity of comparable DVDs.

Basically, the shorter wavelength of the blue/violet laser means that Blue ray discs can store more data in the same amount of space, resulting in a limit of 50 Gb of data as opposed to 4.7 Gb for DVD.

The Blu-ray disc can hold more information on the same size disc because it has a tighter track "pitch" so that data spirals from the inside of the disc all the way out to the edge.

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