HD DVD, or digital video CDs super precision is a high-density optical disks are designed to store information and videos high accuracy. Area of cylinder 15 gigabytes (one layer) and 30 GB (two layers). This type of the following body in a de rival Blu-ray disks, which is another type of storage bodies of large files. The disk capacity of 15 gigabytes to store films assurances of a clear four hours in one class. Approved this type of CD in 2003 by the DVD Forum building on the techniques of "Advanced Optical Disc" produced by Toshiba and NEC. HD DVD uses laser colour purple or blue. Supports HD DVD video coding systems, such as more advanced H.264 and VC-1, in addition to MPEG-2 used in DVD. Of the benefits of HD DVD salient it is advanced version of the traditional DVD. Raised actuators for the first HD DVD in the United States in 2006. Microsoft has made in the same year of this type of disk option for the Xbox games 360. Such as CD-ROM and DVD and Blue opinion, there are three options for HD DVD are: Read-only (HD DVD-ROM) Registration once (HD DVD-R) Disk for re-registration (HD DVD-RW)
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