This week's 'Guy Who's Supposed To Know This Stuff Not Really Understanding Technology' award goes to Daily Mail science correspondent David Derbyshire for his interesting item in today's edition on Sony's new digital Walkman. Tucked into what's not, on the whole, a bad article -- for the Mail at any rate -- we're told by a Sony PR bunny (dutifully reported by Derbyshire) that the portable digital music player sports an "anti-skip function that allows for uninterrupted enjoyment of music during commuting or jogging". Hang on a mo, though. Isn't the whole point of a solid-state digital player that it has no moving parts that can be shaken about to unterrupt your enjoyment of music during commuting or jogging? Perhaps it was a similarly confused Sony spokesmouth who told Derbyshire about a "device called an MP3 - a pocket-sized machine without any moving parts"? Curiously, the new Walkman doesn't play MP3 files. In any case, apparently hundreds of these MP3s are available over the Web and "some are free". Perhaps the Mail's science guru would like to let us know where we can all get our gratis Rios from, then? ®