Quote:
Originally Posted by Scottnot
That's absurd!
Consider two DVDs of the same movie;
The first, a BD DVD which has been "well mastered" contains the movie at 1080p.
The second, a SD DVD which has been equally "well mastered" contains the movie at 480i.
Now, playing the SD DVD simply reproduces the entire content of the DVD, neither adding nor subtracting any information.
The content on the BD DVD, however, must be scaled from 1080p to 480i by the BD player in order to be displayed on the 1080i set.
It is unlikely that the scaler in the BD player will be as good as the mastering equipment that was used to manufacture the SD DVD, so it follows that the BD DVD on a "standard 480i set" may look worse; or it may look the same; but there is no reason why it can possibly look better than the "well mastered" SD DVD.
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I am sorry this is entirely wrong. A properly mastered DVD is limited by bitrates and other format specifications and won't look as good as a properly mastered Blu-ray disc even at 480i on a good NTSC 480i display. If your theory was correct, films wouldn't have been mastered at HD resolution before being encoded for DVD. Start with the highest possible source before downrezing to 480i is preferrable. Blu-ray players can do, although I won't disagree some don't, a great job with 1080p to 480i conversions. With any digital to analog conversion, you want to start with the best possible digital source and a 1080p Blu-ray source is a better starting point than a 480i DVD source, that is just the way it is. Will the differences be worth much? Not in my opinion, but that doesn't mean there are no differences or the lesser source is the better choice. Look to all factors for why the 1080p Blu-ray disc is the better choice, color accuracy, detail, resolution, and all other technical specifications. If you are talking about a 480i digital display and no digital to analog conversion, I don't know, I haven't ever seen one and would have to look at the specifics for that consideration. I am assuming you are making this claim regarding the typical analog display, some of which can be capable of better than DVD specs over analog connections to begin with.
Chris