Mmm I wouldn’t like to spam, but there’s also video4fuze out there, which is both free as in free beer and as in free speech.
It also has a very nice developer you can actually talk to 
There’s also a pretty good guide by ewelot on how to convert videos with avi-mux GUI and mediacoder.
I say this because this seems to a be a resurrected very old thread (a lot older than video4fuze)
