This is pretty neat. Last year Radiohead played a show in Prague and a whole bunch of fans recorded the show on various pieces of equipment. This was pulled together to make a film, with various clips on YouTube. The band have since got behind the project and have now released the audio track to that performance, which should make it all the better (via The Guardian).
Watch the trailer and a performance of 'Idioteque' below. Love how Thom pretty much raps his way through it all, though he does sound a bit strained, doesn't he? Half-rapping, half-crapping!