You probably won't need to worry about that. Most CDs have each and every track normalized already. This normalizer would only be useful for those rare occasions when you have a non-normalized track.

Another day I ripped a CD in which every track peaked at almost exactly 70%. I want things like that normalized (OK, so I did it in ripper/encoder, but I could have forgotten, as I did with some old tunes). What I don't want is that normalizer rise peak level of, say, a quiet movement of a symphony to the level of loud finale.

Dragi "Bonzi" Raos
Zagreb, Croatia
Q#5196, MkII#80000376, 18GB green