Recorded Shows - Where are they???

Got Contour last week.  Since then ave recorded a few shows.  I saw the titles listed in the My Recordings list.  Now after just a few days they are/seem gone.  Not on the list.  Are they still recorded waiting to be watched and are listed in another listing somewhere, did they erase though the disk is only 1% full???  What happened to them.  If they are still there where do I look to find them and play them back?