It used to download MP4 a few days ago ! but now its only useless FLV format ? I need MP4 format so I can continue to make videos
This is due to a recent change at youtube.
This version fixes the problem: http://www.downloadhelper.net/install-beta.php?version=4.9.5a1
Discussion is here: http://forum.downloadhelper.net/content/youtube-august32011-changes-quality-variants-no-longer-avail...
a very big "thank you"
There is a alpha 2 version available.