Michael Cortez,

The optical out from the PS3 or Blu-Ray player would input directly into the optical in on the back of the HT-Z310 unit, though I believe that there is only one optical in. You'll want to go into the settings of the device you'll be connecting to toggle the audio through the optical cable, as this isn't usually a plug-and-play type of connection. Simply accessing the menu of the Blu-Ray player or game console will allow you to switch to optical out.

I hope that helps!

--HDTech