I have finished up with quite a few duplicates in my Media Library which I want to delete.
This would be straightforward if I could display them in an alpha sorted list, as they would then be grouped and adjacent, thus indicating the duplicates and allowing their simple manual deletion.
I cannot see a way of doing this.
Any suggestions/ideas?

If I am unable to display the contents of the Media Library as a sorted list, in order to detect and delete duplicates, am I able to download them all to my PC, remove the duplicates, and then upload them again, also by FTP?
Could this cause any problems with the database or anything else?