On the main floor, I have a dedicated MCH 5.1 set up. Since the rooms there are on an open floor plan with variable high ceilings (about 10,000 cu. ft.), there's very little opportunity for early reflections. The sonic experience can be quite breathtaking.

I have many DVD-As and SACDs, as well as some of the DTS discs. Clearly some are amazing and some are like bargain bin PC shovelware software. There are still DVD-As being manufactured to very high standards by small companies.

One of my favorites is http://aixrecords.com

It must be pointed out that calibration of a MCH system is vastly more important than in a two-channel system. There's much more room for error and for irregular, unwanted sound as you add more speakers and channels.

Naturally I learned this the hard way by going years with a simple, one mic calibration done at the listening position. When the JBL tech came to do the calibration on my recent Synthesis® install in the downstairs cinema, his six mics, two laptops, and the DACS unit needed to set the networked parametric EQ/processors seemed ridiculously over-wrought. Four hours later my jaw was on the floor as I was literally stunned by the improvement.

Then I had to have the MCH music system done as well. Suffice it to say, I cheaply cheated myself out of a superior experience with my existing equipment by not doing this much sooner.