Thank you very much Colin for your advice. I am presently downloading the clips into iMovie, and am wondering how long a movie it will allow -- it is doing something it calls 'letterboxing' which I can now see means catching up with the clips so far entered. I'm afraid my movie making skills need to be improved - my hands are shakier than I thought and when I have pressed the pause button I haven't held the camera steady enough and we have a lot of views of the sky and the road! I must find the tripod... Again, many many thanks. Jeanette.