Convert DVDs to Video Files and back again for Free.
The Original Programmer is Rastersoft, who's website is Rastersoft.com, where there's also a DeVeDe page.
The Windows Port was made by Major Silence. This port is now believed to be unmaintained.
eustasy are the creators of this website, and you can see it's development on GitHub. You should post an issue there if you have a problem with this site.
There is also an DeVeDe Forum on Google Groups.