GBAlpha NDS movie convertor error

So I was trying to convert a video in wmv format so I could watch it on my M3 real, and when I try to convert the file it says that its either a non-valid movie file or not supported.Granted its more a gameplay clip than a movie, but if its in wmv why do I get the error? I'm using the 1.00 english version.

Use BatchDPG etc. Other people have experienced your problem.

Hey, thanks, Batch worked great!