A friend of mine bought a complete set of the BBC's Robin of Sherwood series (1980s), from a shop in Toronto. The picture quality is horrible, with lots of jerks, stops, and fuzzing. The sleeves are also extremely poor quality, apparently either photocopied or scanned and then printed on ordinary paper, and the disc printing is of similar (inferior) quality - what you'd get from a cheap inkjet disc printer. Finally, the discs themselves have more resemblance to a burned dvd-rw than a commercial disc. The burned portion is clearly visible, and the disc colour is purple rather than silver. I'm 99% sure the discs are counterfeit, but I don't really have any experience with fake discs. If anyone has any better ideas about detecting counterfeit dvds I'd love to hear it.