[vlc] Error

[rubytronics at att.blackberry.net]

Hi I am really enjoying VLC player. I recently ran into a problem. I tried to play a video file and there was no sound. It gave me an error saying: no suitable docoder module:
Vlc does not support the audio "undf". Unfortunately there is no way for you to fix this.

I'd reall appreciate it if u can help me out with this. Thanks 
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