What happens when you are using the progressive output from a DVD player? If the disk contains film (progressive) material which has been encoded as interlaced, then the player can only assume that the material is interlaced and therefore deinterlace the "fields" to produce a progressive frame for output. If the disk had been encoded as progressive then the player would presumably just output the progressive frames as-is.
The question is, is there likely to be any picture quality loss in the former case where the material is needlessly passed through a deinterlacing process? If there IS a slight loss (and I don't know if this is the case) then it may be better for film material to be encoded as progressive rather than interlaced.
Any thoughts?
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