I looked at the plugin and found a problem in source code.
Basically it does the same as Aduck described, but builds an incorrect command line to DVDecryptor
Your new release works good.
I've just one little problem:
When I go rip DVD, decrypter comes in foreground and stays there untill I press alt+tab or click on MP with the mouse.
I just tried different settings in DVD Decrypter...
Has anyone else looked into this any more? I've been attempting to find either a way to make DVD Decrypter run silent or at least find another software that could be used that will accomplish the same thing.