And he says that, of all the current formats, MP3 is the one that he finds "most annoying." Page tells Kerrang Radio: "I wasn't listening - but I'd be confronted with Led Zeppelin music on MP3. It almost sounded like it had been remixed, and not very well at that."

He regrets that his efforts to achieve "transience and depth" in the original productions seemed to have been lost. "They were mixed in stereo with a depth-of-field to them, with everything in focus," he says. "To have it squashed down is not how it was intended to be.