I had a 722 that I transfered all content to an external hard drive and connected to our new hopper. I only had one show I had recorded from a (free preview weekend) channel I don't subscribe to that just would not play back. For the most part I left all the movies (146 and counting) on the external hard drive and access them through the hopper. Almost everytime I play a movie an error code comes up with the option to delete, go to dvr, or live tv. I select dvr, scroll to the movie and press play button again and the movie starts without any other errors. This happens almost everytime I access a movie in the external hard drive even the newer ones that I've recorded and transfered with the hopper. Not ideal but except for the one movie that simply would not allow me access because it was from a channel I don't subscribe to, selecting dvr scrolling to the movie again and pressing play has worked everytime.