All dvds are guaranteed, and we will replace any defective disc due to playback issues(dvd that skips and freezes or dvd arrive DOA), we do not give refunds, because of today's technology for copying dvds, and also, we do not give refund for customers who are not satisfied because the DVD  is not compariable to commercial dvds(read our 'About our Products' section before purchasing). If there is any problem with any order in respect to receiving a defected dvd, please email us within 7 days after you receive your order and it will be taken care of immediately. Thank you!