You need a blu-ray recorder, first you should format it with a software, such as imgburn, then you can use it burn blu-ray movies.
How To Use Blu Ray Rewritable Disc?
Blue ray Disc belongs to the newly developed series of computer technologies. It is basically a kind of optical storage disc that is high density. It is best suited for High definition videos. It can store upto 50GB. There are two types of Blue ray disc. A Recordable format and an erasable and re-recordable format. You are having the BR-R version that can be written on only once.