It looks as though you have been snagged by a copy protection issue. There are ways around this, but this is controversial as not every country is clear on what constitutes illegal copying. In your case I would say that you can create a copy for safekeeping but that would be just my personal opinion.
So after reviewing the legal and moral issues, ensuring that you are not breaking any laws, and double checking that PPRUNE doesn't mind me posting this..... you might look at copying software such as CloneCD or Alcohol 120%.
(If there are any objections to this post, let me know and I'll edit!)