IamJacksUserID wrote:
YWhat exactly is the digital format that is used by all those new fangled high falootin' fancy schmancy digital projectors? I mean, do the theaters get a disk of some sort or is it just beamed to the theater from space? (Not literally, but you know what I mean).
There are some theatres that receive their DCI (Digital Cinema Initiative) print via satellite, but the vast majority receive a hard drive in a cradle. The digital print itself uses the JPEG2000 codec. The cradle is plugged in to the DCI server, which in turn feeds the DCI projector. To "unlock" the film, an encryption key is sent to the theatre. Sometimes, those keys are set to only work after a certain time, so as to keep theatres from running a film before 12:01am on its opening day. Going digital is a very expensive endeavor, which wasn't moving quickly to begin with. The Great Recession has set deployments back even further.
IamJacksUserID wrote:
What I'm getting at is, is there a huge difference between a standard, studio endorsed digital movie projector and simply buying some sort of BluRay projector at retail and showing a standard, off the shelf BluRay disk?
Absolutely, their is a major difference. BluRay is effectively limited to 1k resolution in its current form, while "standard" DCI projectors are 2k. Sony and others are rolling out 4k projectors. Studios are making 4k prints available. This starts the cycle all over again. Theatres have to upgrade from 2k to 4k, because a direct competitor has gone 4k. And when Sony releases 8k, it'll repeat. LOOOOOTS of money going to equipment manufacturers, which was the basic goal of DCI to begin with.
35mm equipment can last for decades with marginal maintenance. I know of theatres that are using projectors built in the first decade of the 20th century. The current lifecycle for a digital system is around 2 years, 4 at the outside. That's an awful expensive treadmill.
And keep in mind that 35mm provides a potential resolution magnitudes or order higher than digital. As Joe said, a properly maintained print is nearly always going to be superior to digital. Pixel boundaries are absolute, film grain is not.
And, one should note, digital prints cost the studio just as much as a film print does, since any savings are paid as a "virtual print fee" (VPF) to third party integrators, who in turn provide equipment and services to exhibitors.