Open Virtual Dub Mod and navigate to the menu stream and select "Stream List."
Press the "Disable" button after you select the Russian audio stream you want to delete.
Right-click on the audio stream you want to keep. Select "Direct Stream Copy."
Select "OK" and close the browser window. Navigate to "Menu" and then "Video." Select "Direct Stream Copy."
Navigate to "Menu," "File" and "Save as." Save the new file with the single Russian audio stream in any folder. Play back your audio to ensure that the Russian dubbing has been removed.