Interesting find. Thanks for sharing, guys. I wonder how this might get use... could be a lot of CPU costs and bandwidth with no real means of support.
There's a list of what it can convert in the dropdown menu on the site. It can handle .avi and .mpg but I don't know off hand what format you'd need to make a dvd image.
I haven't bothered looking at the site, but to burn DVD videos, you'll either need an .ISO image or .VOB files (along with other DVD formats like .IFO and .BUP)