I let iTunes "Keep Library Organized" and have never manually changed any file names. However, if I change a track name in iTunes, or update an Artist's name so the folder name changes, then the file name or the path will necessarily change. I thought I read somewhere (perhaps mistakenly) the MC can handle file name changes, but I see how this might not be the case. What's the best approach for mitigating this issue?
Bill
This is what you don't want iTunes to do. Whether or not you use JRiver IMO, by the way. The tags that write to the file will as Andrew said be updated in JRiver (provided that the external changes flag is checked in the import options). It should not mess your tags up (but I can give some instances where it could). iTunes can really make a mess of this if you let it "keep your library organized". Ok my opionion, but I bet there are others that would agree
This would be an ideal time to reset up your file structure. Get rid of the keep organized option. and make sure each artist as a folder and album sub-folders. Make a compilation folder like \Multiple or Various Artists and if you have classical music might want to set one up for classical and then by composer. Changing the track name tag shouldn't change the file name though ... thats wierd, that could cause duplicates for JRiver?!
eg Z:\Music\Album Artist Name\Album Name\a consistent file name -- For the latter I use Track Number, Track Name, Album name, Artist Name, although some people think this is overkill that way you can always recover the key metadata. I have found that keeping original album art in the album folder can make things easier, but its not required. iTunes really messes with album art.
If you are lucky this is already in place. If not it won't hurt just re import/repoint the library into itunes ... then if for some reason JRiver doesn't work out for you, you'll be set to go in any other half way decent player software. You can continue to use itunes if needed for syncing too. I'd stop tagging with it as soon as you have made up your mind to switch permanently.
Just for info to avoid any semantic confusion, usually the library is referring to the database files that itunes and JRiver are using. Those are indeed separate and distinct. However, the media files themselves can, as said above, be shared. SO if the metadata is embedded in the files, they can update both databases. If the tags are not embedded -- like play counts, maybe ratings and things etc, these would not be shared as they are in separate databases (or libraries if you follow me)