Did the cassette kill the record industry? Did VHS kill cinema? These are the questions that come to my mind when the music industry bleaters bang on about file sharing. It has been blatantly obvious for years now that overpricing and competition from computer games, DVD and the like have had the biggest impact on CD sales and that file sharing is a relatively minor concern.

Now some new research challenges the bleater's view and goes some way to confirming what we always suspected, that file sharing actually increases sales.