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What is Blu-Ray
October 26, 2007
Blu-Ray (not Blue-Ray) disc is the next generation disc format for storing digital files and high definition videos. The name Blu-Ray comes from the blue laser that is used to read and write the discs. The laser used for Blu-Ray has a shorter wavelength than the ones used for regular DVD’s so a lot more data can be stored in a single Blu-Ray disc. Single layer Blu-ray disc can hold up to 25 gigabytes and a dual layer can hold 50 gigabytes. To compare, a standard dvd can hold 4.7 gigabyte and the dual layer dvd can store up to 8.5 gb.
Blu-ray is currently competing with HD-DVD, another type of high capacity, high definition format. Only certain movies are availble for each format. So choosing sides will be difficult, but there is hope because companies like LG and Samsung are coming out with dual format players, yay.
Topics: Hdtv |
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