Need Very Good Video Converter Software

[tamilwap]

Hi Friends,I am Ready to Give Money To u.But I need Good Video Converter With Watermark Facility.It Must Need to convert Fast and Good Quality.
Example download this video:

http://video.mobitamilan.net/3gp.php?name=files/Divx/Latest-Video/Bheemaa/Bheema-%20Rangu%20Rangamma.avi

And Listen this video with Core codec Player In Mobile.If u Have this kind of Software Please Demo With One Song. i will purchase.It must need watermark facility

Any one can give