Yes, I've used winavi for a long time. and it works nicely for me. So perhaps, you also can try it.
RM to MPEG, RM converter, convert rm to avi and other format!
I recomend winavi ipod video converter. It is very simple and easy.
Btw, you can learn more details from its website: WinAVI 3GP/MP4/PSP/iPod Video Converter