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Article Excerpt
* WITH VIDEOTAPE THERE WERE VHS AND BETAMAX, and once that issue was sorted out, the only problem remaining was how to program the player/recorder. With CD-class recordable discs, it isn't that simple--questions abound. Is it disk or disc? What's the difference between a CD-R and CD-RW? How are copyrights going to survive these media? What do those little three-inch discs with the square-cut sides play on? How can the light from a laser record and play sound? Did I just neuter my cat? He was sleeping on the tower when I burned that CD.
Beginning at the beginning
Compact discs (disks are floppies) were invented in 1979 by Philips, which, along with Sony, settled on standards for the new medium. The four-inch plastic discs (actually 12 centimeters by 1.2 millimeters thick) would hold 74 minutes of sound signal sampled at a rate of 44,100 times a second. The odd number for the time limit is attributed to Herbert Von Karajan, the conductor of the Berlin Philharmonic, who lobbied Philips for a format that would...
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