(You can rest assured that there are errors in barbeitam Mitsubishi chemical media products. If you have an error during the first time recording, and the media product is not available, we will replace it with the same number of new products within one year of purchase. If there is any error, please contact the dedicated window.Luxurious silver package; Adopts a specially developed collaborative surface protection layer for improved hardness, and firmly protects the recording surface from damage. Unique metal oxide recording membrane and metal Ablative layer = MABL. Disc uses a wide printable with an inner diameter of 0.9 - 4.6 inches (22 - 118 mm). Specifications: Media format: BD-R XL. Pack quantity: 5 packs. Maximum recording speed: 4x faster printable Package: 5mm case This product is for use with devices that support BDXL(TM) standards.Not for use with other devices.