Toaddub,
second method worked, tested it twice in each of two DVD players and the episode menu appears, is navigable, and selectable

you're a champ and a legend; but why was this disc so different from the other 53 discs in the set ???

so what was it you did with this Muxman to fix this disc, and which version did you use
http://www.mpucoder.com/Muxman/versions.shtml