What are these "SUPERBIT" DVD's?

Was looking at ebay ads for a copy of Larence Of Arabia and noticed a review that came up when I Googled DVD and noticed that high praise was given to a particular LCD HDTV which mentioned looks spectacular when using a Superbit DVD like Larence Of Arabia or The Fifth Element".Was looking for a copy of a suposedly OOP Criterion Collection copy of "Larence".Am wondering which would look better given the HQ reputaion Criterion has versus the Superbit version ?Latter is, it seems, less expensive at it's original list and still in print.Anybody know about the Superbit format?
Cheers
Chazz