It is a professional software.
I think we might be being a little hasty here[:)] Let's start with baby steps because there are other users out there who use the same software set ups as you have and have no problems. Why are you having problems? Why don't you start by giving us your system specs.
Doesn't this idea touch into software piracy issues? Maybe I'm wrong but if I were to convert the thousands and thousands of samples I have into aiff files couldn't I then turn around and sell them to somebody who is not licensed to run the software? Food for thought.