DVR stopped playing about 25 minutes into a 4 hour recording.

November 10 I recorded the LSU / Arkansas game while at a wedding. I came home to watch it. About 25 minutes into the recording it stopped playing and the menu came up allowing me to start over, delete, etc. I have rebooted, and restored following the directions on line. With not luck. I also recorded the replay of the game at 3 AM with the same results.