Originally posted by: shortylickens
I agree, you cant, thats why I am amazed people think there is a real difference in the mediums. Thats not where the difference is.
The difference is in how they copied it over from the original film or five-hundred-thousand dollar digital camera. The blu-ray medium is not ultra fantastic, its how they put the movie on it.
I took that cute little pic you posted (its at 1652x850 by the way, which is really strange) shrunk it down tiny and then upscaled again with AA. The left side looked considerably better, which means that screenie had nothing to do with resolution and was a superior quality image to begin with, at the source, long before it arrived on a physical medium like DVD or blu-ray.
That screen was specifically set up to promote Blu-ray and had an inferior image transfer to the DVD side.
If they had bothered to put in the same effort of digital transfer to the DVD they would have had an excellent quality image on the right. Which was also my point on the DSLR versus webcam issue. You are only guaranteed a higher resolution with blu-ray, not higher image quality. If they choose to deliberately perform a poor transfer to DVD just to make it look inferior to blu-ray there isnt really a whole lot the customer can do about it, just like the customer has no assurance his blu-ray version of a movie will be of a higher image quality from the manufacturer or the studio.
Have you ever noticed the blu-ray camp clings to King Kong like its their new messiah? Thats one of the classic examples where they deliberately gimped the DVD version just so they could show the difference.
That has way more to do with marketing than technology. I agree you cant polish turds, which is why I am amazed so many people are fighting over them.
King Kong is a crappy movie who's only redeeming feature is the availability of an overpriced format just you can get a warm fuzzy over its supposedly superior quality.
Sorry for the rant. My overall point (which should have been made in less words): Blu-ray only guarantees image resolution, NOT quality. And since your video will always fill up your television regardless of its resolution, it really only comes down to image quality, which is not guaranteed. Customers can, and will, continue to get screwed over by lazy or cheap studios, and there is nothing Sony can do about that, nor do they want to.