MEF takes pride in the quality of our videos and guarantee 100% satisfaction. We will replace any damaged or defective DVDs for free within 90 days of purchase. If you deem that any video is inappropriate for your classroom or library, we will accept its return for a full refund or credit, if it is shipped back in 100% re-sellable condition within 90 days of purchase. Your only cost is return postage. Click here for more details.