Hi Alan

It works like magic. I knew the solution would be something simple. I only wish it wasn't going to be so bloody tedious to go through all my iTunes files adding the missing suffix. But how incredible that a document which so clearly says MP3 on its face is not actually labelled as such when it comes to other applications on the same machine. I wonder whether this is a general Mac abberation.

Whatever! It seems that retirement has boosted your problem-solving skills whereas my little gray cells are in decline. Many thanks for taking the trouble to share your wisdom.

David