The voices come back to me with Harry Potter like that. Doesn't matter how often I see the movies, or how much fanfic I read. It all falls away, and I'm left with the voices I heard when I first read the books. It's nice.

Come to think of it, the voices (and the images) fall away for me with Tolkien, too, though it's been so long since I've read them, I wasn't sure when I first started re-reading.