When I try to play SW III, only the opening THX logo scene is decoded by my receiver (Sony STR-DE995) as Dolby Digital 5.1 EX. The rest of the movie plays as regular Dolby Digital 5.1. In other words, when I have my receiver's surround back settings set to "auto" to decode the discrete back channel on EX produced tracks (rather than "matrix" which synthesizes the back channel), it will only play the discrete back channel during the THX logo, then no back channel during the movie. My receiver shows it is receiving an EX signal during the THX logo, but only regular DD 5.1 during the movie. This also happens on some other DVDs that are supposidely produced in 5.1 EX. Some DVDs with the EX logo do play correctly with the back discrete channel. Anyone else have the same problem? Could it be a problem with my Panasonic DVD player (can't remember the model #)?