I have a Wharfedale DVR TU500DTR which had dozens of programmes saved on it but for the last few days all it says when I try to view or record anything iis "your hard disc drive is not yet ready" This happened a few weeks ago too and we had to format the harddrive and lost all the saved recordings. I need to know if there is anything I can do to save the current programmes or do I have to format the harddrive again. If so I do I do it please.