Tdk blu ray discs featuring durabis2 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 extreme