TDK BDR 25Gb 4x Spindle 50 Blu Ray Discs TDK Blu-ray discs, featuring DURABIS2TM technology, make recording HD video and backing up large data directories possible. Each single layer 25GB disc provides 5x the storage of a conventional DVD allowing for 2 hours of HD quality video while supporting a throughput of 72Mbps. The exclusive DURABIS hard coating formulation protects the media surface against scratches and other contaminants while the advanced spin coat manufacturing process and ultra-precise recording materials create an extremely smooth and precise cover layer allowing for 10,000 re-writes without loss of quality. Features More than 2 hours of HD video recording Exclusive DURABIS2 hard coating protects disc surface from scratches, fingerprints and smudges Highest compatibility with any BD hardware in the market Inorganic recording layer material for long lasting quality 100% compatible with XDCAM HD and XDCAM systems