I too have a dd and dts which is also dts es and dd ex I spent hour switching between the two formats and completly agree with rick, spatial, it widens the sound field without making it false and is clearer, but, it took me over an hour to find this out, so does it really matter!

Now, the real difference is between dd ex and dts es, there i think there is a huge gap but unfortunately not enough discs to satisfy me. The two big films for this are i think 'Gladiator' region one and 'Terminator 2' Region two. Gladiator especially gets my juices flowing.

Dave