Why does the screen suddenly go black on my LG blu-ray player?

Episode 949 (1:27:56)

Mark from Temecula, CA
LG Blu-ray player

Mark's blu-ray player frequently will lose picture, but the audio will continue. David has had trouble with LG players and although it sounds like an HDCP issue (copy protection), it should affect both, not just one. It would be a good idea to borrow another blu-ray player and see if he can eliminate the TV as the culprit. Also, update the firmware if he can.