Can't access songs in iTunes. There are exclamation marks on about half of my library. When I try to play them I get: "Can't find the file" notice and iTunes asks me to locate each song. Why is this happening and how can I fix it?

Question

I had not opened my iTunes in weeks. When I opened it today, most of the songs in my library had exclamation marks beside them and when I clicked on them got the message: "the song could not be used because the original file cannot be found", then asks me if I want to locate it. When I press "locate" tab I am led to iTunes folders and have to hunt around for the song. Some songs I can't find in the folders. Any ideas as to why this is happening and what I can do to fix it?
Help would be much appreciated.
Thanks.
PE

Answer 1

The problem of tracks becoming de-linked between iTunes and the music files in your iTunes music folder happens for different reasons - this seems to come up fairly commonly in this forum.
The solution can be to locate each song in the iTunes library, as you mentioned - or, but wait, before I get to that...
trouble finding the original track in your iTunes music folder? maybe look for it under compilations, or if not using the 'group compilations preference' then look in the folder under the songs artist name, but what song artist name iTunes uses depends on what you have in the metedata tag spot for album artist or song artist. Any varyation in artist name spelling, in the menu item 'get info' metadata for any selected individual track will cause iTunes to create that as a separate artist folder in the library, even names like 'various' or any difference at all (even the word 'the' can change where in your iTunes music folder a track gets placed by iTunes). You can try to use the finder function of find file (finder munu item outside of iTunes) to locate hard to find items.
Back to how to re-link any de-linked tracks .
There may be scripts that can help re-link de-linked music files - or, at least provide you a list of such files, Scripts are easy to install and use...
at Dougs Scripts, there is one called iTunes Track CPR that might work
http://dougscripts.com/itunes/scripts/ss.php?sp=itunestrackcpr
or, if you just want a list of de-linked tracks, go to
http://dougscripts.com/itunes/
and find the script called List MIA's, this will create a text file listing all de-linked tracks
if you review the thread at
https://discussions.apple.com/thread/3633708
also the thread at
https://discussions.apple.com/message/17513078#17513078
you may find more insight into dealing with this kind of issue there, although some of that thread may not apply to your case, aspects of it might help.
Good luck.