Creation of the DVD carrier was connected with the searching for a data carrier with the larger capacity than CD. The DVD is the most popular medium on the market. In the following article we describe its structure and the way it differs from the CD carrier.

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Blu-ray Disc (BD) – competitive for HD DVD format of optical recording, created by the Blu Ray Disc Association BDA. This is the follower of the DVD format. Its capacity is larger than the DVD`s, which is possible due to the use of the blue laser. This new type of the carrier enables recording 25GB of data on a single-layer disc.

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How to build a compact disc? We present a video production of the Discovery Channel series "How it`s made?"

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In descriptions of a lot of Internet auctions and on websites which professionally deal with the regeneration of the optical carriers, you can find information that machines operated by such business units fill the surface of a disc (fill scratches). In the following article, we want to present, what actually the OptoClear technology is.

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