The tape exists today exactly 50 years, says Philips Netherlands . The magnetic tape in 1963 came from the factory in Hasselt, Belgium , where it was developed by a team of researchers led by engineer Lou Ottens (87). The 80s were the heyday of the music tape. Sony developed the Walkman in 1979 and soon after came cassette players in the car. In a broadcast of the Dutch television program The World Keeps Turning in January of this year inventor Lou Ottens (87 ) says that the compact cassette , as the tape was originally called, arose from the need to make smaller music carriers. "It was supposed to be able to have it in your pocket, on battery and easy to operate. Well, that's all worked out." "We had to trust in the concept, and in '63, before it came on the market, I was doing a round in America. There were the big names of the trade. There I showed my first model. They said, "Yes, that's nice, but there is no market here." Later, the engineer was also involved in the development of the compact disc which was introduced in 1983 .