Just check the release date...

The one you see on Amazon is the same with the one on DVDTALK

Columbia was planning for a Memento SE release but changed to Memento LE recently. Making the movie LE is actually better than making it SE. There have been so many SEs but there are only a few LE.

The LEs I can think of...
Lawrence of Arabia, Bridge on the River Kwai, MIB....
They are all excellent!!!

Sometimes e-retailers get the information wrong because they want to start selling ( with pre-order ) ASAP... Therefore, the information might be the earliest news, which sometimes is not up to date.

Amazon always gets the information wrong...
So I would not take what Amazon have on its website for it

For example, "Abyss" is a Special Edition, not a 5 Star Edition, even though the content in "Abyss" is good enough to make "Abyss" a 5 Star Edition