I've got a small product I could release commercially, in short its an intelligent youtube video player for websites (flash one) The grey area, and its main feature, is that it automatically selects the best quality of video available. If an HD version is available behind the scenes it plays that, if not it tries the HQ version, and lastly it just shows the plain old normal version. 1: Any ideas if this is legal or not to show these alternative versions through a media player? 2: Any idea if it is legal to even sell a youtube video player? ps: the only reason for sales is because afaik no other player can pull all 3 versions of the tube videos many regards in advance!