MythTV / MythDVD movie ripping / playback problem (Solved!)

I have used Myth to rip a large number of my DVD's to AVI files (using either the Excellent or Good setting).  Now that I am starting to play back the movies, I have found something that is very troubling.

On many of the movies, the first 95% of the movie (e.g. 1:13 min of a 1:26 movie) plays flawlessly. However, near the end of the movie, the audio and video starts to speed up and get jerky. (Audio/video sync is also thrown off.) Continue reading