To save some heartache, perhaps anyone reporting audio problems on a certain track should compare against the other mixes first (and mention this). If it exists across the board, then it probably is supposed to be that way, and not worth h_h having to track down, but if it does seem unique to a track, exact timestamps would be helpful, as Nick66 said.

And while there's also talk about colors, brightness, contrast, etc., it does come to mind that during the duel, most notably around when Luke is herded into the carbon freezing chamber, Vader's features were a bit more difficult to make out than I expected. Overall I liked the feel of the whole scene, but have to wonder if the blacks ended up a bit more crushed than they needed to be. I've only watched that scene on one display, so I may have judged hastily, but that was my impression.