Recently certain dvds won't play on my player. They try and try to read, and then I get an error message that says "playback feature may not exist on this disk". This has only happened with very new releases(and only some)- all my old dvds play fine. My player is a few years old-but works good-is this some new security measures- and is there a way to update my player, if so? (it is a Magnavox MWR 10D6 DVD Recorder).