I have always been a HUGE fan of the surround sound format when it brings a quality of sound not found on the original mix. I have been critical somewhat of "Sgt Pepper" but thought the other 2 releases added to the regular mix everyone knew. In my opinion this mix is the BEST THUS FAR. I am blown away at the channel separation and the things heard now that before the surround mix never knew they were there. Also the bass and drums really come alive. Wait till you here the difference. Its like a completely different album. Giles and company are really getting there Sh-- together with each release. I have not had a chance to check the new regular mix yet but will tomorrow and also the extra's but if your a surround sound person as I am this IS A MUST OWN BLU RAY.