Can't Assign Movie Audio To A Track

[leigh]

A friend gave me a concert video which has audio mixed by the venue. I need to do a little post-processing on it and when I try to assign the movie audio to a track, the only choice I am offered is "None":



Here is what I have configured in DP:





This is what Final Cut Pro says about the audio:



Only the first two Dialogue tracks have audio.

This is what QuickTime Player says about the movie:



If I try to import the movie audio, DP crashes every time:



I must be missing something obvious and I'd appreciate any suggestions on what to do.

Thanks.

**Leigh