Vidding Technology

I was wondering if anyone has ever experienced the same problem as me before and maybe knows a way to fix it.  The thing is, I got the "Alice" SyFy mini series to vid and when I played it in media player, it was fine, the audio and video is fine. 

But when I import it into Sony Vegas, the video track is the full length - 1.27, where as the audio track is only 1.18 long?  I don't understand how that could happen.

Any and all help would be greatly appreciated!