Mark, my guess is that those DVDs are not anamorphic widescreen. Normally the image is compressed and then stretched to fill the screen. Sounds like the images are stored on the DVD in a normal ratio.

Hopefully someone with a LOT more technical knowledge can chime in.

I have a couple foreign DVDs that I get black bars all the way around. If I stretch the image I can't read the subtitles.

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"Nothin' up my sleeve. . ." --Bullwinkle J. Moose