A DVD or VOB file may contain several audio
streams (for example, in different languages). In such cases Watermark
Master allows to select the required audio stream for encoding.
After a DVD is added,
double-click it in the "Source Files" window and click a chapter
in the tree. If the chapter contains more than one audio stream, the "Select
Audio" list will become available in the "Properties" window.
Select the required audio stream from the list.