The DVD's are the Bluray versions for all the films, in case anyone's still wondering. Just a simple repackage, but with new DVD's.
Nice thing though is that they have a Dolby 5.1 Spanish and a Dolby 5.1 English, which wasn't the case with the previous Bluray set. My bets are on these being the same exact mixes minus the language meaning the true vocal removal method may very well be possible.