I have some m4v files that I ripped from DVDs using handbrake. The default language track on the files is German, but they do also include the option to play in English. When I open the movie in VLC or other apps, it automatically plays German, and it's the German audio that I'd like to extract. However, when I try to watch the movie or export the audio using streamclip, it always plays/exports the English. I've read that you can change this in the "Audio PID" drop down menu, but when I click the drop down menu, there is nothing available to choose (the menus are just empty). I'm running max os 10.5.8. What am I missing or doing wrong? Thanks for any tips!!