Thanks. Still making some headway here, but I wanted to see what you thought about some more mpeg2 file samples. Avidemux is recognizing the (same) audio after some type of conversion in Womble. Difference between Files 1 and 2?
File 1 is before conversion:
http://www.sendspace.com/file/ncclqg
File 2 is after conversion:
http://www.sendspace.com/file/a8wsqs
The other interesting thing about this recording is the are the strange video artifacts.
Note the contrast to the third file - this one is after a conversion, but from a different broadcast. Works fine in Avidemux!
File 3:
http://www.sendspace.com/file/jc2wn3