I'm desperately looking for a solution to my problem.
A Windows virus moved all my ebooks from their sorted out folders to the parent directory. an example of what I mean is:
...with the directories 1, 2, 3 and 4 being empty.
Please note that the files A.pdf..E.pdf are not damaged. They have simply been moved to another directory on the same hard drive. I have already tried majority of the file recovery programs.