Unable to extract .WAV in VirtualDub

[ngnous]

When I open an .AVI file (Divx) and try to save the audio as a .WAV file, I receive the following error message: "The requested audio compression is not compatible with the input format. Check that the sampling rate and channel count of the input match those of the requested format." This does not happen on all DIVX files, only a few. Those few, that I receive the error, seem to all have 5 channel audio. If anyone has received this same error and has been able to resolve, PLEASE post and let me know the fix. Thanks, Michael

[secretagent]

you have ac3 audio there are many posts in the forum how to fix this
you can use vdub and headache