Say for example a band is starting out, not signed to a label, they burn their demo or promo stuff onto CD-Rs. If that band then goes on to become famous, what's to say someone couldn't make a copy onto another CD-R and pass it off as the original?
digitalfreaknyc, I don't know of any software that will tell you what you want to know. The only suggestion I can make is to look for clues on the discs themselves, for example, it they are on 74min/650MB discs they are unlikely to be recent burns.