I have tried that. It appears some are the correct "version" that I can convert, while other need to be reimported. The majority of them do not have the metadata information.
I end up with 2 files. One is a .prc and the other epub/prc. I have been deleting the orginal .prc Is this causing the problem?
The program just stopped working again. It is currently frozen and not responding.
How often is it set to save to the metadata file? I was going to restart it but I got a message that I could lose data if I don't wait for the program. Unfortunately, it has been frozen for about 4 minutes.