Well I still think they should have stuck to early specs that on both DVD and Blu Ray had the discs in a caddy similar to floppy discs. That aside though DVD is good but it was limited by it's standards and released at a time when firmware updates were unheard of so those standards had to be set in stone. They tried to lock in the common denominator, then it got dumbed down somehow halfway through causing issues, and all along had quality compromises. The NTSC standard for example was logical at the time but they didn't leave room to improve. I'm not aware of discs that are even progressive scan even though EDTV has been around for ages. Instead the players did the conversion. We then had snake oil attempts to improve things like superbit (I still say that was a scam) and non standard but slightly compatible issues like higher than spec audio or less compressed video.
The short is that DVD was good on a normal TV but had no room to grow. It looks ok now due to digital enhancements built into players and TV's but it's no longer real. As more HDTV's sell more people are watching digital effects of what the movie should look like when BR is what the movie really is.
Nun sacciu, nun vidi, nun ceru e si ceru durmiv.
I know nothing, I see nothing, I wasn't there,
and if I was there, I was asleep.