TDK 50GB 2X BD-RE DL Rewritable Printable Blu-ray Disc with Jewel Case (5-Pack) Supports two speed recording of up to 72Mbps data transfer rate BD-RE DL dual layer Rewritable Format version 2.1 Full HD recording highly compatible with most burners Carbide series super hard coating protects against dirt, scratches and fingerprints White discs are inkjet compatible and have a 23 mm diameter printable area