I compiled a recent youtube-dl script on 2011.08.04.
When I try and download Snow: Coronet Peak superb conditions or New for 2012 at Holiday World: Mammoth - World's Longest Water Coaster!, it downloads 0kb of the movie and the filenames will be anything that was before the colon in the Movie Title.
I get New for 2012 at Holiday World instead of New for 2012 at Holiday World: Mammoth - World's Longest Water Coaster! and Snow instead of Snow: Coronet Peak superb conditions.
So for me any download from YouTube with a : in the Title will give me a 0kb file with chopped title and no extension.
Can anyone tell me how to make this work?