About: Blu-Ray vs HD-DVD

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About: Blu-Ray vs HD-DVD Sponge Permalink

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Sony, among other vendors, co-developed an optical disc format known as Blu-Ray. It is so known because it uses a blue laser to read the optical information from the disk. Because of the wavelength of the laser, it is able to focus to a much smaller degree than a typical red laser. Because if this tighter and smaller focus, the pits etched on the disk are much smaller. As a result of the higher density of data, much more data can be placed onto a Blu-Ray disk as compared to a DVD disk.

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rdfs:label	Blu-Ray vs HD-DVD
rdfs:comment	Sony, among other vendors, co-developed an optical disc format known as Blu-Ray. It is so known because it uses a blue laser to read the optical information from the disk. Because of the wavelength of the laser, it is able to focus to a much smaller degree than a typical red laser. Because if this tighter and smaller focus, the pits etched on the disk are much smaller. As a result of the higher density of data, much more data can be placed onto a Blu-Ray disk as compared to a DVD disk.
dcterms:subject	Index Topics
dbkwik:buzzoutloud...iPageUsesTemplate	dbkwik:resource/ZPxGbJJNiztjaaczhR_-Bg== dbkwik:resource/zcnys15RopyXAMpMIe_aWw== dbkwik:resource/813ntP5l4SYuZzAuKyfxrA==
abstract	Sony, among other vendors, co-developed an optical disc format known as Blu-Ray. It is so known because it uses a blue laser to read the optical information from the disk. Because of the wavelength of the laser, it is able to focus to a much smaller degree than a typical red laser. Because if this tighter and smaller focus, the pits etched on the disk are much smaller. As a result of the higher density of data, much more data can be placed onto a Blu-Ray disk as compared to a DVD disk. The Blu-Ray project is separate from the HD-DVD project. The HD-DVD format was created by the same DVD consortium of companies that created the DVD format. The HD-DVD format uses a similar blue-ish laser light to allow for a higher density format. Until recently, HD-DVD's disk sizes were about half of the Blu-Ray disks. Now, both formats can hold about the same amount of space through multiple layers at about 50GB per disk (give or take).

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