Is this Dave trees hard work? If so then perhaps the link should be removed. If you want to see these ads I believe our resident palitoy archivist was responsible for converting these to digital format and then sold them as a dvd to cover his costs. Most of daves work seems to get ripped off in one way or another. It seems great it's on you tube but spare a thought for the guy who put the time, effort and cash in to make it possible.