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Old 05-05-2008, 05:39 PM   #4 of 7
Stephen Tu
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Join Date: Apr 1999
Local Time: 11:11 PM
Local Date: 09-07-2008
Posts: 1,049

Re: Ran across this post on 1080P and it has some validity


That article doesn't really paint the complete picture. In theory, if a 1080p TV does proper film-mode cadence detection + deinterlacing of a 1080i source, then indeed it doesn't make any difference whether you feed it 1080p or 1080i from a film-sourced disc. But there have been various tests at places like CNET & Home Theater Magazine using the HQV test disc that show that many/most older 1080p sets aren't doing this (using less accurate video mode deinterlacing instead), so in practice sending 1080i loses something on these sets. Now, it only makes a significant difference in scenes with fine vertical detail combined with motion (usually a slow pan, with fast motion it's hard to notice loss of resolution), so probably most people shouldn't care too much. But a video purist would want to use a player with 1080p out in case the processing in their TV isn't up to snuff. Also 1080p24 can be better for TVs with 120hz refresh avoiding the judder caused by the 3:2 frame repetition pattern.
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