DVD2one is a very well structured and optimized piece of code that doesn't allow stuff like this to be build in the engine. (that's why i so darn fast )

As for adding our own de-CSS stuff to our core, it can be done very easy.

But we will not do that before it is legal to do so! .
Which means the day that de-CSS becomes officially legal and legit is the day we start working on adding it to DVD2one, not a day sooner.