A:Answer Yes, it will work. But, if your receiver has HDMI ports, then you can make use of the two HDMI outs on this Samsung 4K Blu-ray player. One of them is specifically for audio – it's designed for people such as yourself who have an older receiver which is still working well but can't pass a 4K signal. Just make sure you tell the receiver which of the HDMI ports you connected the blu ray audio out HDMI cable to whenever you're playing a blu ray disk, and the receiver will disregard the optical audio signal that is simultaneously being transmitted from the TV. Of course, you'll have to switch the receiver setting back to whatever the setting was for the optical audio when you're watching something other than a Blu-ray on your TV. I have done this exact same procedure, and it works fine. Technical people could explain why passing audio through an HDMI cable can produce a better audio signal than passing it via optical audio, but I don't recall all the details now. Good luck.