Color and density changes DV MPG-2

Ever wonder about what color and density changes may be taking place in your video clips as they go from DV to MPG-2?
The bottom line: there are slight changes going from DV to MPG-2 that darkened most of the patches, but the changes (although noticeable) are VERY SMALL.
If you want to review my experiment and see an image showing the changes, go to: http://homepage.mac.com/profpixel/color_bars/colorbars.htm
I hope at least a few of you find the experiment interesting. Let me know.

bump....

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