This is probably due to the shutter speed in the camera when you shot the footage.

This controls the amount of time that the CCD takes to grab the image, if the shutter speed is low then the ccd is on for longer and any movement will smear the image slightly and when this happenes 25 times in a second it can look awful.

Also check the file type, because win mm likes to use .WMV files to capture (unless you tell it otherwise) when you should capture in DV-AVI.

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Edius Pro 4 Broadcast, Edius DVX, ADVC300 -- PremPro 2.0, Matrox RT X100