I recently started a photography buisness. I wasn't going to, but due to high demand I have decided to sell CDs with print releases. My question is, how to I protect the CD from being copied to other CDs but still allow the customer to print the image. I just don't want someone to buy the CD and make several copies of it. Also how do you protect the images from being edited? I've already had one customer ask if she can make changes to the image once it's on the CD.