VirtualDub/Video editting/automation help needed

I have a website with hundreds of videos, I want to have any easy process where I can watermark these videos with my website name (just text) in the lower right hand corner. I need to do this in batch where I point the software at: directory A and it puts the finished file of the same name into directory B so all I do is start the process and hours later I upload the work back to the website. Can be VirtualDub or any other free (or reasonably priced) product on the market. Files will be basically anything that WIndows Media player can handle. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Windows XP