When editing tags, going inattentively too fast, I somehow changed a large number of album titles to 1 (character one).
So I restored a saved library, and happily album titles were back to their originals until they started changing back to 1 over the next few minutes (721 files affected).
Im about to begin manually editing tags. I tested this -- when I edit an album tag back to its rightful name, it does not change back to 1. But its a significant labor, although most album names are available in the Windows folder structure.
I have both of these checked: Update tags when file info changes and Store in file tags (when possible)"
So maybe the wrong album titles (the character 1) were put in the music file when I changed the tags by mistake; and the correct album titles remain in the old MC library (the one I restored). I was about to experiment with Update Tags (from Library) but the correct album titles don't last long after I restore. And experimenting seems like a bad idea with my limited understanding, for which I apologize.
Is there an easy way to get the correct album titles into both the files and current MC library, for good?