Updated to El Capitan, now DVD Player won't play DVDs that used to play before the update.
My late-2011 MacBook Pro has never had any problems playing DVDs in the past. After updating to El Capitan (OS X 10.11), DVDs that used to play no longer do. Literally 2 days before updating to El Capitan, I played a movie, and now that same movie won't play in DVD Player. I get this message: "Supported Disc Not Available." I've tried several different DVDs, all of which have played in the past, and now I keep getting the same message. A basic search suggested I needed to "repair permissions" in Disc Utility, but the new update to El Capitan no longer has this as an option.
What can I do to fix this?
MacBook Pro, OS X El Capitan (10.11)