Barbeitam and Mitsubishi Chemical Media products are safe for errors. In the event that an error occurs during the first recording and the purchase media product cannot be used, we will replace it with the same number of new products only within one year of purchase. If there is an error, please contact the following dedicated window. Barbeitam / Mitsubishi Chemical Media Products Inquiry Form: https://wssl.iodata.jp/support/form/verbatim/Phone Number: 050-3116-3022 (Japan General Agency Co., Ltd., I O Data Devices) Acception Time: 9:00 - 17:00 Month - Friday (excluding holiday holidays) DVD-R for compatible data: Can be printed on an inkjet printer. Specifications: Media format: DVD-R. Number of packs: 100 sheets. Maximum recording speed: 16 times. Printable: Wide area type compatible with inkjet printers. Packaging: Spindle case.