Yea I've never liked these dark knight traks with part of the reason being down to the mastering. It's obvious really on this ost- I didn't even bother to open it up on audacity to check but the unclear farty bass is just too obvious when hearing from any decent pair of headphones. Actually theres plenty more others that hans zimmer has produced that get their volume enchanced in this way, but noticably the original sherlock holmes ost (2009) is actually a pretty clear recording I think. I think it hasn't been treated like the others, which is nice.
My most favourite film OST, the insider (awesome movie btw), is pretty clean too.
Funny, I was reading something peculiar on a major UK newspaper website yesterday:
They talk about higher sampling rates giving music more of a dynamic range. Well, for stuff like these ost's whats the point- the base file is a wreck to begin with.