Why is Superman The Movie on HD yet the sequels are on BD?
#2
DVD Talk Hero
The only Superman movies on HDM period are Superman Returns, Superman The Movie and Superman II The Richard Donner Cut, and they are all available on both HD DVD and BD. So not exactly sure what you are talking about here.
#5
HD = High-Definition
HD DVD = HD DVD
BR/BD = Blu-ray
HD DVD = HD DVD
BR/BD = Blu-ray