It constantly deletes & cancels any show(s) it chooses to. Even after they are already recorded & in the playlist. We have the defaults set at "Until I Delete". Either way, the disc is always a minimum of 90% available.. nowhere near full. This is the second DVR unit in 1 year that has done the exact same thing. And DirecTV is of absolutely no help at all, they keep telling us that "someone in the house must be deleting the programs", but since there are only 2 adults in our house, we know we are not doing anything to prompt this. Does anyone have any ideas on how to fix this problem? We will be forever grateful! The reason we have to have DirecTV, is because where we live, cable is not available to us, and DishNetwork does not offer all of the channels we want. Thank you.