Library Lost - Please HeIp I tried updating my old ipod & now all 10,000 songs in my library have an ! next to them and I get the error message "song " " could not be used because the original file could not be found" on every song I try to play

Question

Please help - this morning I tried updating one of my old ipods for my wife (this ipod hasn't been updated in 2-3 years).  I plugged it into my pc, it was recognized and the software updated.  I created a new playlist and tied to sync the ipod.  This ipod had never been used on this pc/itunes since the pc is only 2 years old.  When I tried to sync the ipod it stated that it would have to erase all the old songs on the ipod prior to syncing.  I clicked ok and it proceeded to wipe out the old ipod and sync the new playlist (~1000 songs).  When the sync was complete there were only 6 songs from the new playlist (all purchased this morning from itunes) on the ipod and to my horror all ~10,000 song on my pc in itunes now have a ! next to them.  Only my recent purchases from itunes do not.  When I click on a song with the ! I get the error message "the song " " could not be used because the original file could not be found."  How do I correct this issue - I am scared to hook my ipads or other ipods to my pc for fear of losing everything?!?!?  I spent 100s of hours burning the 10,000 songs from my cd collection and do not want to have to do it again. 
Any help is greatly appreciated.

Answer 1

This "original file cannot be found" thing happens if the file is no longer where iTunes expects to find it. Possible causes are that you or some third party tool has moved, renamed or deleted the file, or that the drive it lives on has had a change of drive letter. It is also possible that iTunes has changed from expecting the files to be in the pre-iTunes 9 layout to post-iTunes 9 layout,or vice-versa, and so is looking in slightly the wrong place.
Select a track with an exclamation mark, use Ctrl-I to get info, then cancel when asked to try to locate the track. Look on the summary tab for the location that iTunes thinks the file should be. Now take a look around your hard drive(s). Hopefully you can locate the track in question. If a section of your library has simply been moved, or a drive letter has changed, it should be possible to reverse the actions.
Alternatively, as long as you can find a location holding the missing files, then you should be able to use my FindTracks script to reconnect them to iTunes .
tt2