The AC-3 audio codec provides a 5.1-channel surround sound experience, which enhances the viewing experience with immersive audio.
The season focuses on the friends dealing with significant life changes. Ross and Rachel's on-again, off-again relationship reaches a boiling point, while Monica and Chandler's relationship becomes more serious. Joey tries to make it big as an actor, and Phoebe balances her quirky life. friends season 09 ac3