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How Home Theater and HDTV Work by Michael Troller, Michael Miller

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Chapter 16. How CD and DVD Players Work

How CD and DVD Players Work

A little over 20 years ago, digital technology entered the living rooms of the world. This technology—using computer-like bits and bytes to carry programming information—came on a silvery 5”disc, and was read by a low-powered laser beam. Chances are, you probably have one of these digital devices somewhere in your home, along with several dozen (or several hundred) of the silvery discs. You call them compact discs, or CDs, and you use them to listen to digitally recorded music.

The CD was a great idea, and the digital technology behind the CD was later adapted to hold more bits per disc, in order to better ...

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