Go to <a href ="http://keepvid.com/">http://keepvid.com/</a> , copy and paste the URL: <a href="http://www.youtube.com/watch?v=Mb_x6zgGoro">http://www.youtube.com/watch?v=Mb_x6zgGoro</a> in the field provided. it will give you a link to save the file. Save it as a .flv (flash video file) and play it back with a compatible media player. I recommend VLC Media Player available free at: <a href="http://www.videolan.org">www.videolan.org</a>