|Thank you Bryco for the knowledge that it is harmless EXIF data. Until your email arrived, I had no idea what it was.|
You are quite right. I do not find the Program name directly under 'Properties'. In fact, I l-click on 'Properties', then l-click on 'Details' and there, under 'Origin' I find the field 'Program name'. Although for some photos I read 'Adobe Photoshop Elements 7.0' there, for some others it says simply, without a specific programme name, 'ver.1.00' ... I have inspected a few of these and find that the ones that I looked at are some that I received from a friend who has a Minolta digital camera; I use a Leitz.That presumably has made a difference, but I have no idea why or how! However, in some photos of my collection there is no entry in the 'Program name' field at all!
Be that as it may, you have taken away a small worry and for that I am duly grateful. I thought that maybe something was wrong that had to be corrected. Now I can save myself a lot of time and unnecessary work just by leaving the Program Name entries alone.
Once again, many thanks and best regards.