Hello Derek, many thanks for your reply before Christmas. Have only just got round to trying out your suggestion but when it comes to transferring a file to my hard drive it is still greyed out and doesn’t allow me to save. I have done a test with just a USB stick and this was successful. So the problem would seem to be with the hard drive. I can open up all the files on the hard drive through my iPad and it would appear that all the previously saved photo files are still there. I will try to find out if it is possible that part of the hard drive is corrupted otherwise it is a trip down to the Apple store for a bit of help and advice. My hard drive is a WD Elements a few years old but should have masses of storage available. Once again, thank you.