I downloaded the VLC player on T1, and I don't have the audio problem with it. Also the movie I was playing was a wide screen version, for some reason the the default player in T1 shows it as full screen. Not sure why?. IN VLC is shows up as widescreen, no audio issues.
It is not the default, I rarely use it use it. In most cases issues like that relate to the file. But maybe someone else that views downloaded files can help!!