SUPER is an awesome video converter. It can convert any kind of video without problems. Even rare containers like *.NSV, *.STR, *.VIV!
It can produce any video format:
Once chosen the video container format, we choose the video codec, the audio codec, the video resolution, the framerate, the bitrate, and presto! In just a few minutes, it converts ANYTHING!
SUPER (acronym of “Simplified Universal Player Encoder & Renderer”), can be downloaded from the official Website, but, that Website is a kind of a mess, so you can download it from here (version updated to April 2009).
Update 18th august 2016: their latest installer contains adware. Be careful and read carefully what are you agreeing to, don’t install toolbars and other useless and deceiving adware.