Successful new prerecorded audio media emerge, on average, every two decades—one human generation. The LP made its debut in 1948, 21 years after the introduction of electrical recording ended the adolescence of the record industry and the acoustic 78rpm disc. This was almost coincidental with Jack Mullin's retrieval of analog tape technology from the wreckage of post-WWII Germany and its subsequent commercialization by Bing Crosby's Ampex company (footnote 1). The compact cassette made its appearance in 1963, followed almost 20 years later by the CD, in 1982. And now, as I mentioned in the October issue's "As We See It," we have Sony and Philips' Super Audio CD and the DVD Forum's DVD-Audio to contend with (not forgetting MP3 and the Internet).
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