I recently bought a copy of the Pirates of the Caribbean Collector's Edition dvd. The picture and analog sound work fine. When I try and use either dts or DD 5.1, there are breaks in the sound every 30 seconds or so. I am playing the dvd in a Toshiba SD-4800 with a 75 ohm digital cable going to an Outlaw 1050. Is my dvd defective, is this some new copy protection that my equipment can't handle, or is there a setting somewhere that I need to deal with that I don't know about? Any ideas? Thanks in advance.