MPEG streamclip won't find all audio tracks

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!!

Update: If I use handbrake to rip a movie and only choose one audio track (the German one), then streamclip does, in fact, extract the German audio track. But I'd really rather have the movie on my computer with both tracks, since my husband does not speak German.

Is there a way to force it to give me a list of audio tracks, without the PID pull-down menu (that only says "0")? It's strange to me that it automatically plays in German in VLC, quicktime, itunes, etc., but streamclip won't even give me the *option* to play it in German, as far as I can tell.