Sony’s first portable CD player, the Discman D-50, was introduced in November 1984. At first, the D-50 was not profitable but as the product gained popularity, it soon became profitable, and Sony began to create a portable CD market. The Discman range was later re-named to CD Walkman.

Many other manufacturers soon followed in Sony’s footsteps to offer portable CD players for consumers; however, the major popularity in these devices came in 1997 because of Electronic Skip Protection, making possible heavy usage.

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