Hi
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Also, I have left the HXD860 'video' menu to AUTO so the HDMI is outputting 1080i/50. Is this the best way to get the best PQ or should i change it to a progressive resolution like 576p?
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Your TV, while accepting 1080i, can't display it, so has to throw away a lot of pixels to reduce the picture back down in size.
HDMI and upscaling on standard definition equipment is more marketing gimmick than anything else. When we buy a digital camera, the number of pixels advertised must be real, and not upscaled. For example, a manufacturer would find it very difficult to get away with selling a 8 mega-pixel camera if it was really just 2 mega-pixels
upscaled to 8, as it is a cheat, misleading and doesn't give you better photographs, but yet this is essentially what is happening with HDMI on DVD Recorders and players!
When you upscale to 1080i, the DVD Recorder/player has to make up and guess what all the extra pixels should be, then because your TV can't display all those extra pixels in the case of 1080i, it has to get rid of a lot, yet the TV doesn't know what were the guessed pixels or the original pixels with real detail so will end up throwing away some of the original ones leaving you with the made up guessed ones. That can't give you a better picture can it?
I would recommend trying the following and see how it looks:
When playing your own recordings that will be interlaced, output 576i.
When playing commercial film DVDs that will almost always be progressive sources, output 576p.
In other words you are only sending to the TV the original unprocessed picture. Your TV will then upscale (and de-interlace in the case of 576i) and add
just the right amount of made-up pixels to fill the panel. This may just give you a better more pleasing picture.
If you really feel you need to make use of the "upscaling" in your DVD Recorder, the next best settings are likely to be 720i for your own recordings and then 720p for commercial films on DVD.
Regards
Phil