In 1998, Criterion began publishing DVDs. Criterion began publishing on Blu-ray Disc in December 2008.
See also: Masters Of Cinema
How does Criterion decide which films receive the “Criterion treatment”?
"We aim to reflect the breadth of filmed expression. We try not to be restrictive or snobby about what kinds of films are appropriate. An auteur classic, a Hollywood blockbuster or an independent B horror film has to be taken on its own terms. All we ask is that each film in the collection be an exemplary film of its kind. Of course we can’t just pick movies and put them out. The process of getting the rights to release a film can take years. Even if we want a film, we can’t work on it unless the film’s owners grant us the rights."