I use smartsmoother at it default levels. I like this filter because it seems to take away noise and at the same time make the picture sharper, which is amazing. That filter must be downloaded from somewhere..sorry I don't remember where. Maybe you should go to virtualdub's home page and look in filters, there are some links to other filters. Some people use several noise reduction filters at once. So maybe you should read on this. There are quides to filters somewhere also. Sorry I can't be more specific.