Thanxs (Score 1)

Thanks everyone who took time to reply. I have to say I am a bit mystified by the flas card thing too as I am asking this question for a friend. I know that they get heavt use, as the application is taking digital images of such things as mining waste tips etc, and then processing these images to highlight any changes in the positioning of the tip (hopefully to get warning of imminent collapses etc). So there are a lot of pictures taken on one trip and a lot of trips.