Windows 7 I have a problem with mts audio stuttering when watching on media player classic, only works with wi

I have a problem with mts audio stuttering when watching on media player classic, only works with windows media player. When I convert to avi hd 1080p stuttering comeback, if I try to convert to lower resolution the avi won't play at all. I have avs video editor and converter from a friend and they both also cause stuttering only with the mts video I have. The file will be playback on laptops and other media devices, hopefully there is a fix for this. The video is my presentation, in an astronomy club, been recorded with HD Camcorder