Shareware: You can try this program, but this version has some limited features or time usage restrictions. You should purchase it in order to remove those limits.
Free Convert WMV 3GP ASF AVI FLV iPod 4.0
Free FLV to iPod Convert 3.0
WinMPG Video Convert 188.8.131.52
WinMPG iPod Convert is a complete solution for video file conversion.It supports converting AVI, Mpeg1, Mpeg2, DVD,VCD, SVCD, RMVB, DivX, WMV, Mpeg4, RM, QuickTime MOV,Flash SWF to mp4.