Siliconmaster482:Just to follow up on that question, I'd imagine it's for stuff like Star Trek: Remastered- HD 4:3 images.
But that wouldn't be anamorphic, which is what the suggestion was. Putting a 4:3 image into a 16:9 frame isn't the same as putting 16:9 or 2.4:1 into a 4:3 frame.