Quote Originally Posted by 5FDP View Post
It depends on the application. Blu Ray holds more information that a normal DVD as has been stated therefore picture can be shown at a higher resolution e.g. 1080p given the right TV equipment, however, it is a really expensive process to remaster a movie that was made 20 years ago and in digital terms, it's easy to go backwards in terms of quality, but to polish a movie is like polishing a turd - it'll still look crap. It's the old LP's vs CD's argument.
Not quite.

Digital is actually quite a bit behind your traditional cinema master from decades past.

We're at 1920 x 1080 on Blu-Ray.

The original analog film most used back then gives a definition equal to something like 6800 x 2000.

It depends on the type of remastering, as there's different methods. It's not a one-size-fits-all solution, nor 'polishing a turd'.