Actually the correct nomenclature is:
DD-EX 5.1
DTS-ES 5.1 (matrix)
DTS-ES 6.1 (discrete)
The reasoning is that if you actually list a number 5.1 or 6.1 that refers to the number of DISCRETE channels. Since DD-EX is matrix and DTS-ES matrix is obviously matrix they are NOT discrete and...
wanted to add a few to the list:
Sin City (DD-EX)
Sky Captain (DD-EX)
Resevoir Dogs 15th Anniversary (DD-EX and DTS-ES)
There is also another list that may be helpful (like this one) at the following addy:
Guess I can't post it right now, but I'll say its at the
importforums
dot com