[Explosivo]

You said the show was in London, so am I correct in assuming its PAL? Regardless of the region settings, if you have a US Sony DVD player that will be the message you receive with a pal disc. There is a header trick you can use, where you change the ifo files to say NTSC and that should make the disc playable (Sony's can convert PAL -> NTSC on the fly but this ability is turned off). I dont remeber the details of it, but its not very difficult. Do a search for ifo edit header trick and you should find directions.