I was at my local used music/video store today, and since I'd gotten several ST videos already there this year, checked that shelf. Something I hadn't seen before was 2 volumes on DVD, each containing 4 episodes as sort of a best of or highlights offer. The copyright was 2005. There were two different volumes I saw, and none appeared to be sequential episodes. I remember titles of "Balance of Terror", "Amok Time", "The City on the Edge of Forever", and "The Trouble with Tribbles". Were these some sort of remaster sampler, or did they have the misfortune of being released before remastering took place?