Blu-ray down converts to 720p discussion???

[TheRealBob]

Originally Posted by bootman

Guys, the issue is with these 1080i sets.
They accept a 1080i signal (like the pic shows above) but their native resolution is 720p. (actually most are 768p). The only true 1080i sets where CRTs.

So the issue becomes, is it harder for the set to take a 1080i signal and convert it to 720p (or 768p) or is it better to feed it a 720p signal to begin with from the player. (and the player itself is doing the conversion)

My dad has one of those goofy 1366x768 sets. I've often wondered whether it's better to send it 720p or 1080i. I think his PS3 automatically detected it as 1080i, since it does accept that as input, but it might be better to have it run at 720p. In theory it could get a little more information from the 1080i signal, since it's downscaling a higher resolution rather than (slightly) upscaling a lower resolution, but since it's so close to 720 resolution, the tiny amount of additional information present probably isn't worth it being in interlaced mode rather than progressive.

Originally Posted by bootman

The only way to find out what works best for your set (and to your eyes) is to try both and see what looks better to you.

Yes, I could have done that on his TV, I suppose. The only movie he had when he was setting it up was Galapogos, which is 1080i, so that was an additional element of confusion.

I'll have to do a few experiments the next time I'm over there.

Anyway, my TV is native 1920x1080, so my only worry is making sure I don't accidentally switch the HDMI input's mode from "JustScan" (no scaling) to "16:9" (some stupid overscan mode that scales it up slightly).