I am trying to author a DVD title that includes three audio tracks: A 5.1 AC3 track, 2.0 AC3 track, and a 5.1 DTS track. The source file I am adding into MultiAVCHD is an MKV which already includes the mention audio tracks and I am not including a top menu with the authoring. Perhaps I'm missing something. I only just recently got into using the program and could use some help since I've spent hours already looking for info that could explain what's going on.