I have posted a few times on this subject but here are my thoughts again in a nutshell. I went 7.1, then 9.1 and the difference with 95% of the material out there was marginal at best and I went back to 5.1 and have not looked back. Most DVD's are 5.1 anyway! EX and other surround formats are not that common to say the least and even when you get lucky and get a true EX disc, the information coming out of those channels is minimal.
If you ask me this is not much more then a marketing tool to convince the buying public that they need yet more speakers, amps etc.
