Reverting to Earlier Version of iTunes

Go to HD>Library>Receipts - remove the iTunesX.pkg to the trash.
Drag your iTunes app to the trash. B/U your iTunes Library and .xml files. B/U your iTS purchases.

Find the folder - Previous iTunes Libraries in the iTunes folder - in there is a copy of your previous libraries - select the one that is the date of your upgrade to iTunes 9. Make a copy and rename it - iTunes Library - replace the file named the same in the iTunes Folder. Any additions to iTunes under iTunes 9 will not be in the data base so you will have to add them back once iTunes is open again.

Repair permissions with Disk Utility - Install iTunes 8.x from the Disk Image you downloaded. - repair permissions again.

http://www.apple.com/downloads/macosx/apple/ipod_itunes/itunes802formac.html

Open iTunes - if all is well you can empty the trash.

MJ
sh.

MJ

Did you do this step:

Find the folder - Previous iTunes Libraries in the iTunes folder - in there is a copy of your previous libraries files- select the one that is the date of your upgrade to iTunes 9. Make a copy and rename it - iTunes Library - replace the file named the same in the iTunes Folder. Any additions to iTunes under iTunes 9 will not be in the data base so you will have to add them back once iTunes is open again.

When iTunes upgrades your iTunes it creates a copy of the original Library file before updating - that way if there is a problem you have a Library file to revert to - however when it upgrades it changes something so the older version will not work with the new version. Before launching the downgraded version of iTunes you need to copy/rename/replace the iTunes Library file that is created when you install the downgraded version of iTunes.

MJ