Could not find decompressor for source audio format in virtual dub

[Energize]

I get this message so many times when trying to convert dvds to avi, I think it is mpeg audio, If I try to save the file as a wav I keep getting the same error message, it also says source format tag 0050, anyone know what that means?

 

[Energize]

Could also be that you are trying to use Vdub to work on a file with AC3 so you will need the decompressor for Vdub linked from videohelp.com

Cheers found it now.

 

[Energize]

Cant get it to work though, lol still get the error when I try to convert ac3 files to something else.