I've tried watermarking videos in different ways but found Moyea FLV transformer to be the most effective. The only problem is that my converted files weight about 3x the size that the original flv. Which is the correct format to choose? So far I've tried .wmv .mpg .avi, but there are also many other settings and I'm not quite sure what I should change to compress it as small as possible yet still with same quality.