I wasn't doing a plain Find and Replace; I was doing the Find and Replace that is part of the "name, move and copy files" window, where it deals with changing names of directories. And I assure you, it DID move or better yet, make disappear all the files in the folder that held them. Now I have confirmed (I can replicate it) that exactly what I have described above makes the files disappear in an extra permanent way. You didn't comment on the asterisks I omitted. I suspect if I had included them in both the find and replace field, it would not have killed everything off. Unfortunately, in the name, move and copy file/find and replace, the example shown and written about, ("Find & Replace: This allows you to change a path by replacing something like C:\Music\ with D:\Music\) it doesn't mention asterisks. (Personally, I should've remembered to do so.)
I have the latest build on my MC. Also, Update tag or library doesn't "paste" the metadata from the old library description to the misnamed new file sitting in the folder that (now) is the same as it should be. Even renaming the new file exactly like the old, I end up with tracks that are named "tracks"; it won't recognize a similar library entry.
I'm fairly savvy in computers generally, (not in media programs particularly) but I have to admit MC has always been a challenge, especially since I have trouble getting answers to anything I need, in the Wiki source. Given that I will have to reinsert all metadata from scratch now, (which kept me from dropping MC since I began with MC11 or 12), it may be a good time to explore other options. I think the Forum has been great; but I've pretty much exhausted my patience.
I appreciate your efforts at helping me.
Thank you.
S