Unpredictable digital problems with movies?

No pirate or rented DVD movies here, it was playing in dolby digital EX not DTS, its funny you mention layer change as I almost added to my original post I thought maybe it happens at chapter change. I had this issue with a Samsung HD841 and had it replaced and same thing happened, then I had the Rotel serviced with a new unit being sent to me to solve my complaint. I was using a Sony player and had no issues, but now it is back with the Lexicon and I feel with having other players act this way it is in the Rotel where the problem is. All the same I cant figure out what it is.

My cable has done it also now that you mention it, I held the button in to re-boot it, Rotel claims no issue ever but I take that with a big glass of "yea right"

Well this is probably a stupid idea and who knows if it will help but I hooked up a Monarchy DIP just for the sake of trying it........so far no issues, if this helps I wont know why. The disc I was playing was "The Incredibles" and it has 2 discs in it and was purchased from SunCoast at the mall so I highly doubt it is a scab DVD, I bought "Second Hand lions" at a flea market a few years ago and learned my lesson about well packaged crap.

Another friend mentioned the DTS problem, if I tell the Lexicon to down convert DTS to PCM would that make any sense, neither the Lexicon or the Rotel will allow me to totally disregard DTS wich was my first thought.
I did listen using the Analog Multi-bypass (SACD) hook up and it sounds very good, would this prevent my issues?

thanks for the reply. I called Lexicon, no upgrades.
again this isnt the players fault as I had same issue with my last player...so it has to be a Rotel issue, but they plead ignorance.