Back in 1979, Sony cofounder Masaru Ibuka was looking for a way to listen to classical music on long-haul flights. In response, his company’s engineers dreamed up the Walkman, ordering 30,000 units ...

Opinions expressed by Forbes Contributors are their own. First it was vinyl, and now it’s cassettes that all the cool kids want, as nostalgia takes over the music world. It seems both those ...