My Liteon is just too choosy to unreliable to burning media. It will only burn Panasonic 50Gb BD-R as a coasters. I am looking for a 4k BD-R burner. My computer is over 10 years old and will not play 4k BD-ROMs. My next computer will be able to play 4k video. My new 4k burner needs to be a do a quality scan.