The camera followed Iron Man from the top of Grand Central, down into the canyons of 42nd Street. On a stream, this shot was chaos. On BluRay, it was geometry. He saw the dust motes swirling in Cap’s wake. He saw the individual scratches on Thor’s hammer. When Hulk punched a Chitauri chariot, the slow-motion crumple of alien metal was so detailed he could see the rivets popping.
He pressed "Play."
The film opened on a SHIELD facility. Black Widow, tied to a chair. In standard definition, the scene was a thriller. In 1080p BluRay, it was a chiaroscuro painting. Every bead of sweat on Scarlett Johansson’s forehead was a distinct pearl. The weave of the ropes biting into her wrists had texture. When the chair exploded outward, the splinters of wood caught the light like shrapnel, and the audio—DTS-HD Master Audio—made the thwack of each piece hitting the wall sound like it was happening in the kitchen behind him. The Avengers 2012 1080p BluRay
Then came the Tesseract.