Most people I know, and a lot of people here think that DTS is the best sound. I disagree. I notice that on DTS tracks, the subwoofer is MUCH more powerful, even to the point of being distracting. Also, the quiet parts are REALLY quiet and the loud parts are REALLY REALLY loud. The dialogue is so soft that you have to turn up the volume to hear it and when a loud part comes I have to quickly turn it down because I have neighbors, plus I fear it might damage my speakers. On Dolby Digital, the sound is more balanced, the subwoofer is only loud when it needs to be, it doesn't have the huge range of DTS, plus the dialogue is easy to hear with out cranking it up. This has been true with all my sound systems and DVD players.
I have never seen a superbit DVD, but all my movies look pretty darn good on my TV (which happens to be a 32" GE non-projection, non-plasma, non-HD, non-progressive TV). My friends want me to get a better TV, but I won't give this one up until it breaks.
I must say that I've had quite an advenure with DVD players. My first DVD player was a Sony, which I bought in 1998. Last year, I bought a cheap Philips player, since my Sony was sort of out-of-date. I really regret buying it. The DVD picture's contrast was so high that a lot of detail was missing. If I tried to adjust the picture setting on the television, it just looked wrong. So I went back to my sony until i saw a great Sharp home entertainment system for only like 200 dollars, so I quickly bought that. What i didn't know was that the dumb bitch who sold it to me KNEW IT WAS BROKEN already. It didn't load one damn disk. At long last, I ended up getting a Sony 5-disc player with progressive scan and a great speaker system. This one both loaded discs and had wonderfully detailed, perfectly contrasted picture.
So that's my DVD adventure. I just don't understand why some players have such high contrast that you actually LOSE most of the detail that DVD has to offer. Maybe down the road I'll even buy another TV, but that's it for me.
Concerning special features, I enjoy them as long as they aren't promotional, like made-for-TV documentaries. I also heartily enjoy commentary on movies. My best DVD sets are the Alien "quadrilogy", my LOTR movies (the extended versions), and Terminator 2 (the ultimate edition), as far as special features are concerned. My best looking and sounding DVD would have to be "Osmosis Jones", alongside "Who's Harry Crumb?", and "Henry".
In the end, though I think DVDs are superior to tapes, they are also much more comlicated than "Play", "Pause", and "Rewind". So, theres my thoughts on the DVD format.