Spike1000,
I don't know whether you'll see this...hopefully, you will. I don't have much time to devote to debugging my MC23 install, so because MC works so well for the vast majority of my digital music files, I tend to slack, when it comes to these repairs. Anyway...
You may remember that I initially asked for help understanding why MC couldn't import some of my music files. I believe this only happens with AAC and ALAC files. The files read as having no tags, even tho Win10 recognizes tags in these files and can display them within the details pane in Windows Explorer. I have no idea why these files could not be read properly. In any case, I downloaded Mp3tag v2.86, and did as you suggested. I loaded the apparently "bad" files into Mp3tag and manually wrote tags. This seemed to fix most of the AAC files that MC23 wouldn't import. Thanks, very much, for the recommendation to use Mp3tag. Now my only problem is that there are 1084 of these files.
I still have a couple of problems in MC23:
(1) There are still some files that MC refuses to play, even with the tags apparently repaired. The ones I've identified, so far, are all ALAC files which MC23 has labeled as .m4a. Does MC23 look at ALAC files as .m4a, just as it does with AAC files? Or is this a mis-identification?
(2) Is there a way to re-tag files in bulk fashion? It's going to take me forever to repair over 1000 files.
Again...thanks for your help.
Scott D.