You_Too said:
From what I've seen in screenshot comparisons here and there, the Japanese BD is the same as the HD DVD, but also has cleaner upper and lower edges of the picture. The HD DVD is bright and blurry at those edges.
(referring to Terminator 2)
If clean edges are what you want then grab the WMV-HD somewhere. It's 1440x916 anamorphic and contains a few lines that were cropped from every other release.
The loss caused by the vertical stretch on the JP is obvious. Take a look at the shingles in the first comparison. Unfortunately the theatrical cut EU/AU HD DVD/Blu-ray encode had a level of DNR applied that wasn't used for the superior Special Edition encode.
http://www.avsforum.com/t/1073273/terminator-2-judgment-day-all-high-definition-releases-comparison-pix