Also, some asshole can steal the one in your car, and instead of being depressed that you no longer have that cd anymore, you have another in the house. Then being smart you can burn a copy for your car.
a good genious advice for ya, is to burn a copy of your original cd, so that you can do whatever you want with it ( fresbie play included ), with no big worries and its mutch cheaper than buying thousand copies for that.. it's not witchery man.. just technology.