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How CDs Work
CDs popularized digital recording in the late 1980s.
CDs popularized digital recording in the late 1980s.
©iStockphoto/Maria Bibikova

Before compact discs, you had to rewind and fast-forward to get to a particular bit of information. Not so with digital storage -- the incredibly popular CD makes pinpointing data a split-second task. Find out how CDs (and CD-ROMs, CD-Rs, CD-RWs) hold and let you retrieve information.

Read about How CDs Work.


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