I know it's not a TOTALLY different DVD, but I ordered the same YOMD this summer to see if it had changed (hey, it's free, why not). Everything is the same, but it does have a little more info and footage from the newer additions like Nemo & Laugh Floor. THe one from last October just showed concept art because the rides hadn't been open yet but the "refreshed" version has more footage of people actually on the newer rides instead of just concept art.
I personally like the narrated versions better - that 2005 one was just plain cheesy. I know some people have said they enjoyed the energy of it, but to me it just seemed like they were "cheesing up" these classic attractions that really weren't cheesy. If they do have another DVD set up like that one, I hope most of the hosts are like that 2005 woman host that did the younger children section - she seemed like she was informing you everything you needed to know without taking a "this is a totally super cool ride, man" mood. I also thought the teen section of the YOMD DVD was cheesy. Just my opinion, though.