audio problems with xbox video on a windows phone....

[Ultraviolet]

Very pleased to find you can download videos from an xbox to playback on your windows phone...however, the audio doesn't seem to downmix to stereo... So when I watch a movie using headphones I can't hear the centre channel (but it's fine when I listen via the phone's speakers).

I get sound effects, music etc through the headphones (the left and right channels) but no dialogue or other sounds that are on the centre channel in a 5.1 format..

Any ideas how I can fix this? It makes watching video on the train in the mornings impossible...

Cheers,

UV