I saw a handful of the old SE DVDs in my local shop today and it got me thinking about Trek again.

From what I understand and correct me if I’m wrong, The original series is essentially theatrical 35mm audio on LD and 5.1 supposedly from 70mm runs for DVD. TNG films have reference LD transfers of the first three, initial DVD ports of these as letterbox and then SE reissues with cleaned up anamorphic transfers and added DTS audio.

Has anybody ever sat down and done comparisons with LD, DVD and BD? I can understand the video differences but there is very little out there about any audio quality differences in regards to remixing and dynamic range reduction. I have the first two TNG LDs and will check those out soon.
I’m thinking about getting the TNG BD set. If I have this, the original crew BD and LDs, is there anything I’d be missing other than the director’s cut of TMP?