The collector’s edition DVD of The Undiscovered Country had a few changes from the previous VHS director’s cut, mainly just this very, very cheesy ‘flashback’ effect during Spock’s mind meld interrogation of Valeris, showing clips of the people he listed off.
Still have all the collector’s edition DVDs of the TOS films, and they mostly look great. They all have a warm color palette, which is alright I suppose. I don’t own any of the TNG films from that series, but I do have the first run First Contact DVD, and christ I hope they used a better transfer for the Collector’s Edition DVD. DNR’d to death and back, and there’s something else I can’t put my finger on, but it just looks so, so wrong.