I converted some .avi's (digicam videos filmed in 640x340 at 30 fps)to .wmv's files using Stoik Video Converter 2 using the same compression, frame rate and size as the original files, but I'm only getting audio (much better than the original .avi as the sound no longer skips), no video with the converted .wmv files.

What is it that I did wrong? Is there a codec that I'm missing? Any
help would be appreciated.