bokdol said:
ok there is a few thing you need to check. first try draggin one song out of your itunes library and putting it on the desktop. then with the song on the desktop do a comand i. or get info. (edit. or do a search like the above guy) a small window pops up. down at the bottom there is a permissions sections. expand that view. see who has permissions. (edit. in the pictures on the above post you can see read write options forownership. expand the details. and there are more. if the others say read only you need to change them to read write) set all of them to read write. then rename the file and import it back into itunes to see if you can change the name.
if that does not work try try converting each file to aac files, in itunes. it's in your importing otions under prefs. i had the same problem with a downloaded file. from the song writers website. (it was a free download) it went into itunes fine but the mp3 would not retain the name. so i converted it to aac. then i was able to change everything.
There's a couple things wrong with these comments- one, dragging a song out of iTunes will generate a new copy, which may or may not have the same permissions as the one in the library. Two, converting songs that are already ripped as mp3s into AACs will damage the quality and probably be a lot of work. definitely not recommended.
MY ADVICE: Try selecting the iTunes music folder in the finder, doing a 'get info' (Apple+i) changing all your settings there to read/write, (yes, including the ones under 'details') then select 'apply to enclosed items'. This should change read/write for all the songs at once.
But as to your question:
If your iTunes is set to 'keep files organized' and to 'copy music to iTunes folder when importing', you do not want to edit, rename, add or remove anything in the Finder. Do it all through iTunes, regardless of your current issue, because messing with them in the Finder won't help.
To start over, make sure both the options above are checked. Then:
go in the finder
move all your artists folders out of the iTunes music folder into another location
Open iTunes
Select your main Library
Select all (Apple+A)
Delete
Now go get all the music you moved and drag it back onto the iTunes window.
This will copy all your music into your iTunes music folder again.
Delete the originals.