"2.1" setups always seem to have this kind of confusion, whether it's in Media Center or elsewhere, so I agree that it would be good to rename the option to make it easier to understand.
P.S. Sorry for the weirdness in this topic. (disappearing posts)
I wrote up a post, submitted it, and refreshed only to see that someone else had already covered what I had written. So I removed my post to get rid of the redundant information... to have it quoted immediately after posting.