On a number of stations including ITV 3, Channel 5 and Drama my recordings stop short sometimes as little 5 mins others much longer but not reaching the end of the program. Also whenever this happens it is flagged by a symbol which I shall describe.

An orange rectangle, the bottom left side being obscured by a green circle which in its centre has a small white rectangle. When I see this I know that the program has failed to record completely in most cases. Can anyone suggest a fix? Many thanks in anticipation!