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How the DVD player works?
Member rating: No Rating | Words: | Submitted: Tue Oct 12 2004
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The DVD player/recorder. How the DVD player works? DVD, popular known as the Digital Video Disc, but it really means Digital Versatile Disc. The DVD is the new generation media disc. A DVD looks like a CD, but the capacity is much bigger. A DVD holds between 7 and 25 times the data of a CD. A DVD has more capacity because the data is packed closer to each other, even though it is packed into the same space as a CD. The tracks of the DVD are closer to each other; the pits in each track are smaller. And the data compression technology is more efficient. And at last, two separate layers of tracks can be combined into a single DVD disc. The quality of a DVD is much better than the quality of a CD. The quality is one advantage, but another advantage is the longer playing times. The capacity also...
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