Try to remove the remaining parts of RP with CCleaner:
http://www.ccleaner.com/download/(free)"]
http://www.ccleaner.com/download/(free)[/URL]
What burning program do you intend to use for burning the DVD's??
I personally use Nero and others here DVD Santa. Both seem to be quite good.
If you don't want to spend money on a burning program, you could take a look at nonags.com to get some free ware:
http://www.nonags.com 