There isn't a system that will prevent copying of disks. Yes, there is claimed to be copy protection but that is easily over-ridden and any new system that claims to be effective will be cracked and hacked within a few minutes of publication. Even the "great" Windows XP security system was opened in no time.
I think you'll just have to trust people - like all the other producers of CDs etc do.
If, of course, you came up with an effective system yopu would be able to retire tomorrow!!
Note to anyone reading this: Easy as this cracking may be, I am not willing to reveal methods to anyone.