Hi everyone!
I've just found very useful software for converting video for my Curve: Mobiola Studio for Blackberry (Video Converter and File Manager) by Warelex LLC
It works perfectly and very simple and must work with other phones (Pearl, 8800, 8830). I tried some converters before, but I hate when it forces me to choose codec, fps, format, screen etc, etc… But Mobiola does not!!!
And drag-n-drop functionality is amazing! It converts YouTube, DVD, any other video.
Hope my post will be useful for you!