You make them understand that they NEED the CD. I share a personal loss of a picture of mine in a very common experience. I make them understand how upset losing that very important picture still affects me to this day. I also tell them about everything you can do with the CD, arts and crafts, clothing, blanket throws, being able to give out that last print of their favorite pose, you make them understand the personal value of being able to print anytime they need to. After that, it's mostly they just don't have the money for it. I'm very passionate about that CD, can you tell?lol