I'm ripping a DVD to DIVX, but virtual Dub 1.4.10 can't open my AVI File created with Smart Ripper, after this with DVD2AVI, and them VFAPI converter. The follow message appears:

Virtual Dub Error!

Couldn’t locate decompressor for format ‘vifp’ (Unknown)
Virtual Dub Requires a vídeo for windown (VFW) compatible codec to decompress video. DirectShow codecs, such as those used by Windows Media Player, are not suitable.

How can i fix this?

Thanx!
DJM