Maxell BD-R DL 5 pack - 50GB 6x Speed Blu-Ray Printable Discs "hard coat" hardened protective film to prevent scratches proprietary read-write errors that cause adoption Blu-ray phase-change recording film uses inorganic disc less susceptible to ultraviolet rays Capacity: 50GB Max Speed: 6x Packaging: 5 Pack each with 5mm Slim Case