What does anamorphic DVD mean?
When a Widescreen movie is transferred to home video, the black bars at the top and bottom of the picture are usually encoded along with the movie. But when a film is anamorphically transferred, the picture is squeezed to fit into a 4:3 frame, and then unsqueezed by your DVD player. This way, instead of lines of resolution being used on the letterbox area during the encoding process, the unsqueezed picture uses the full resolution of the entire screen because the player generates the black bars. If you’re fortunate enough to have a 16:9 TV, the TV will stretch out the picture to fill your screen so there are no bars. However, if you tell your DVD player that you have a 4:3 TV, the DVD player will format the picture for letterbox display on your screen.