Amazon's Gold Box Deal today is a number of Criterion Blu-rays and DVDs, which are all priced at more than 50% off their regular price. That's an even greater discount than you can get in the Barnes and Noble sale that slashes the price of Criterion discs in half.
Criterion releases are incredibly easy to recommend, as they are one of the finest home entertainment labels out there.
I can particularly recommend their release of On the Waterfront though, which is the kind of benchmark release that others should be judged against. For the Blu-ray release of On the Waterfront Criterion took the same approach that Masters of Cinema did with Touch of Evil and included the film presented in more than one aspect ratio, allowing viewers to decide which version to watch. It also includes a commentary and a great deal of other extras too.
The full list of titles currently on offer are listed below and I would advise you hurry if you want to pick any of them up as the sale will only lasts for one day.
On the Waterfront (Blu-ray)
The Qatsi Trilogy (Blu-ray)
The Thin Red Line (Blu-ray)
The Life and Death of Colonel Blimp (Blu-ray)
Richard III (Blu-ray)
The Blob (Blu-ray)
The Darjeeling Limited (Blu-ray)
The Rules of the Game (Blu-ray)
Three Colors: Blue, White, Red (DVD)
The Last Emperor (DVD)
Eclipse Series 37: When Horror Came to Shochiku – inc. The X from Outer Space; Goke, Body Snatcher from Hell; The Living Skeleton; Genocide (DVD)