I plan to get my plasma calibrated soon but I have a quick question about sources.

If I have an input calibrated specifically for my Blu-ray player, will those settings also be correct for DVD playback from that same player?

Or would it better to have a seperate DVD source connected to a seperate input on the display and have it calibrated seperately? I've recently replaced my DVD player with a Blu-ray player but I'm using it for DVD playback too. Is this a bad idea? I'd like both Blu-ray and DVD to look as accurate as possible.

Thanks!

I plan to get my plasma calibrated soon but I have a quick question about sources.

If I have an input calibrated specifically for my Blu-ray player, will those settings also be correct for DVD playback from that same player?
Depends upon the TV. Some TVs store different settings depending upon the resolution it sees, so you may need to use both an SD and HD calibration disc. This is actually the preferred way for a manufacturer to do this, by the way.

Or would it better to have a seperate DVD source connected to a seperate input on the display and have it calibrated seperately? I've recently replaced my DVD player with a Blu-ray player but I'm using it for DVD playback too. Is this a bad idea? I'd like both Blu-ray and DVD to look as accurate as possible.
Separate inputs may need their own calibration, so it again, depends. ;)

Bill

Depends upon the TV. Some TVs store different settings depending upon the resolution it sees, so you may need to use both an SD and HD calibration disc. This is actually the preferred way for a manufacturer to do this, by the way.

My display is a Pioneer Pro-111FD. It's able to lock ISF settings for each input. I prefer using the Blu-ray player (Pioneer BPD-05FD) to upconvert DVD to 1080P beacuse 480i to the display adds overscan and occasional jaggies.
The TV only sees one resolution from the player (1080P).

It sure is convenient using one player for both Blu-ray and DVD but maybe it's better to use 2 seperate machines to 2 seperate inputs so you can get Blu-ray playback and DVD playback calibrated seperately.

Otherwise I'll just have the input calibrated to the Blu-ray calibration disc and let the chips fall where they may for DVD playback. Or maybe this isn't even an issue? Maybe after calibrating the input with a Blu-ray disc, DVD playback from the same player will look as accurate as it can?

Thanks for responding. :)

The TV only sees one resolution from the player (1080P).
Calibrate to the Blu Ray disc, and then double-check that SD is being properly upconverted. Use the controls, if there are any, on the disc player, as needed/able, to make corrections.

My display is a Pioneer Pro-111FD. It's able to lock ISF settings for each input. I prefer using the Blu-ray player (Pioneer BPD-05FD) to upconvert DVD to 1080P beacuse 480i to the display adds overscan and occasional jaggies.
The TV only sees one resolution from the player (1080P).

It sure is convenient using one player for both Blu-ray and DVD but maybe it's better to use 2 seperate machines to 2 seperate inputs so you can get Blu-ray playback and DVD playback calibrated seperately.

Otherwise I'll just have the input calibrated to the Blu-ray calibration disc and let the chips fall where they may for DVD playback. Or maybe this isn't even an issue? Maybe after calibrating the input with a Blu-ray disc, DVD playback from the same player will look as accurate as it can?

Thanks for responding. :)

How are you calibrating? Just by eye?

If you are only sending 1080p then you should be able to use a single calibration profile....IF.... you BD player twists the rec.601 colorspace to the rec.709 color space.

DVD and BD have different positions for red, green and blue.
http://www.avsforum.com/avs-vb/showthread.php?p=14078380#post14078380

So you BD player should be able to transform the colors from the DVD to where they belong in the rec.709 colorspace.

How are you calibrating? Just by eye?

Currently just using a calibration disc (DVE) but I plan to get the display professionally calibrated soon. I'm just trying to make up my mind about sources before he arrives.

If you are only sending 1080p then you should be able to use a single calibration profile....IF.... you BD player twists the rec.601 colorspace to the rec.709 color space.

DVD and BD have different positions for red, green and blue.
http://www.avsforum.com/avs-vb/showthread.php?p=14078380#post14078380

So you BD player should be able to transform the colors from the DVD to where they belong in the rec.709 colorspace.

This is just the kind of insight I'm looking for - thanks! Do most Blu-ray players do a good job of transforming rec.601 to rec.709 when upconverting DVD to 1080p? I'm just wondering if DVD playback will still be its best when played from a Blu-ray player that's been calibrated to the display using an HD calibration disc.

I'm contemplating getting a PS3 to use strictly for Blu-ray playback and using my current player for DVD playback only on a seperate input to the display. Then I'd have each source calibrated to the display seperately. Is this going overboard in my attept to have as-accurate-as-possible Blu-ray playback and also as-accurate-as-possible DVD playback. Can using one player for both formats work just as well?

Thanks!

I know for a fact the PS3 does a good job of twisting the color space for SD-DVD when upconverting.

Other players are hit and miss, not really a low end v high end thing. Honestly I haven't done that much research into which models are good or not.

I know for a fact the PS3 does a good job of twisting the color space for SD-DVD when upconverting.

Other players are hit and miss, not really a low end v high end thing. Honestly I haven't done that much research into which models are good or not.

There are two aspects to converting SD to HD when upscaling, and I see both often referred to as color twist. The first is decoding from Rec601 YCbCr encoding, and then re-encoding using Rec709 YCbCr encoding, to ensure the set decodes the correct values. The second is remapping the colors themselves from Rec601 primaries to Rec709 primaries.

I'm sure the PS3 does the first correctly. I think I've verified on my Panasonic BD35 that it does the first correctly.

Are you saying that the PS3 also does the second, that it remaps a pure Rec601 green into a new Rec709 color that mixes green and red to end up with the same displayed color, assuming a perfectly calibrated set? I've not yet simulated the algorithm, but I've wondered how well it works given that only integer values of Y/Cb/Cr are communicated across the interface. I've verified that the Panasonic BD35 does not remap the colors to different primaries.

I've seen elsewhere in this forum the suggestion that remapping to changes in the color primaries is not really that important as they are close enough; much more important is the first aspect of encoding the RGB values correctly.

Are you saying that the PS3 also does the second, that it remaps a pure Rec601 green into a new Rec709 color that mixes green and red to end up with the same displayed color, assuming a perfectly calibrated set? I've not yet simulated the algorithm, but I've wondered how well it works given that only integer values of Y/Cb/Cr are communicated across the interface. I've verified that the Panasonic BD35 does not remap the colors to different primaries.
While the conversion is relatively straightforward, no disc player does it currently, AFAIK. Most dedicated video processors don't even do it, so this is not really something that you would bother testing, yet, since one would expect a fair bit of marketing trumpeting the arrival of such a feature.