Select audioline in playlist

[Sleeper]

Hello everyone, my first topic and my first question:

I've got a tv-show in .avi files with two audio lines (english is number one and German is number two for example)
Now I want two playlists: tv-show in english.xspf and tv-show in german.xspf, but how can I select the audio line in the play list?

Please, can some help me?