I just installed the latest version of Apple’s iTunes on my PowerBook, along with an updater for the software on my iPod. Perhaps I should have read my horoscope first, or consulted the i ching. Whatever the reason, when I started iTunes it showed me an empty library, rather than the 18GB of music that I have, and it also warned me that my iPod was associated with a different library, and did I want to erase it and copy my new (empty) library? Aargh! No, cancel, quit, unplug iPod, back away from the keyboard really slowly…..
From browsing the Discussions section of Apple’s support web, it seems that a number of us have had this problem with iTunes 4.9. (See, for instance, the thread entitled “iTunes 4.9 – lost library – please help”.) The only remedy seems to be to back up the old Library files (before iTunes can mess with them), let iTunes build a new library, and then import all of the existing music. This requires that you have enough space for two copies of all your data, so I’ll have to wait until I can get home to use a FireWire drive. (I only have 7GB of free space on my 60GB PowerBook.) And you’ll also wind up losing all of your playlists, ratings, and “last played” information, which is a huge pain.
UPDATE: A Mac user called Dave Garrett just posted the following workaround:
1. Open your Music folder/iTunes folder/Previous iTunes Libraries folder
2. Re-name the file named iTunes 4 Music Library to iTunes Library
3. Drag your newly named file iTunes Library into your iTunes folder, replacing the iTunes Library that the new iTunes had created.
4. Voila.
Seems to work for me.