Problem extracting audio for VCD conversion

[superkiwi]

I am having trouble extracting the uncompressed audio from DIVX encoded files using VirtualDub. I did successfully extract the audio on one short clip as a test, but now all of the sudden I cannot extract the audio from any divx files to uncompressed audio. I am simply opening the video file in VirtualDub then selecting full processing....no compression and 44100 Hz then attempting to do a "save WAV". As I mentioned, this worked once, but a couple days went by and it is not working now. I receive an error stating "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." As best I can tell everything seems in order. I am really puzzled because I can't even convert a clip that I already used for a test, so I know it did work at one point. I have not made any changes to my system since then. I'm running Windows XP with the latest version of VirtualDub. Thanks in advance for any insight you might be able to give me.

[bugster]

looks like your Divx has AC3 audio, this seems to be getting more common. Look in the guides section for info on how to handle this. All the info you need is there.

[dtsking]

I usually use the SIMPLE De-Multiplex in TMPGenc to extract the audio out of a DivX. Works great, and also gives an m2v video file for authoring to dvd. If it is an AC3 soundtrack encoded onto the DivX (check this using the file information menu in Virtual Dub).. I dont know of a way to sucessfully rip it and keep the AC3 sound. As bugster says.. it IS becomming more comon with AC3 tracks,, and hopefully a utility will be released that can sucessfully rip the audio out in this manner. I hope very soon!!

Regards
DTSKing

[superkiwi]

Unfortunately this divx does not have AC3 audio. That was the first thing that I thought of. I tried several other DIVX files and all of them gave me the same error. I even used the same version of virtualdub on another computer and could successfullly extract the audio. I attemted removing virtualdub and reextracting it however I still receive the same error. Is anyone aware of any incompatibilities? The only change that I can think of was installing Roxio EZ CD Creator. I can't seem to find any information about this problem on any other bulliten boards. It seems like one day virtual dub worked fine for this operation then the next it stopped. Any other suggestions?

Thanks for your input.