I have a concern about the very technology which brought about our digital photography revolution and continues to drive it. In the days of film photography both negatives and prints, cared for properly, could last more or less for ever. Digital files might not last as long if we are not careful. In the very age when the number of images has increased perhaps exponentially, the means by which we store them have a sort of inevitable obsolescence. Millions of the images created today record that which deserves to be recorded to serve future generations but are we not at risk from the fact that the 'negatives' will no longer lie in some cultural attic but, if not transferred to upgraded media, will simply disappear or become inaccessible? A sort of collective oversight could lead to the loss of millions of important images so I do hope that online hosts and individuals alike take the trouble to preserve our digital work.