This product is a set of 50 Blu-ray BD-R discs with a capacity of 25 GB each. The discs are white and can be printed on with an inkjet hub. They are sold in a cakebox packaging type. The brand is RIDATA and the model number is BDR-256-RDIWN-CB50. The discs have a maximum write speed of 6x and are recordable. They were manufactured in Taiwan.