“Window-boxed” movies are close to the wide screen 16:9 aspect ratio, but the picture is smaller than normal, causing black bars at the top and bottom of the screen, and also left and right.
I could zoom the picture to fill my television top to bottom and left to right, but then even more than minimal DVD resolution is lost.
It seems most common on older DVDs.
I hate this.
Is there any way to spot this type of transfer before I purchase a movie?