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I want to write it to a DVD without loosing any quality.
Sorry Doc, but you will almost every time loose quality when burning to a standard def. DVD.
an Mpeg2 compression is somewhere in the realm of DVcam color space and a resolution of 720x480, which in your case is fare less then the pixel resolution of your data.
J-
If at first you don't succeed, keep ****ing it up 'till it works!