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    Post Closed as "off-topic" by Diago

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Do blu-ray players really differ in picture quality?

Usually tests claim that this or that player has a "razor-sharp" picture or "minimal distortion in moving scenes" in comparison to other, cheaper players. This makes no sense to me. I don't want players to "sharpen" the image and I thought deblocking algorithms were written in stone in the h264 and VC-1 standards. Does anyone get this?