Okay, even using the AC3 source, it fails. Here is the error.
http://mirror.adubvideo.net/ac3error.png
After I close the crash window, it says: "ERROR: Could not write to standard output"
After I close the main cmd window, FFMPEG comes up and tries to give the audio stream a try, and then proceeds to pause at around 85~88 seconds.
Something definitely fishy is going on here.