We've had this subject before when people were getting DVD's sent to them from F & P and McCall's (I think it was). Finally everyone was educated to realize that you are not obligated to respond in any way!! This is like getting a grocery flier or a hardware flier except that it's on a DVD. They want you to pay for THEIR advertising! The senders CANNOT make you pay in any way!! And you need NOT return it or say "No thanks" or anything! They send out thousands of them and are not doing you a personal favor.
Keep it or toss it!