When updating with the most recent iTunes 11 version on Monday, it deleted my playlists and a number of songs from my library. The missing songs are still in the itunes music file, but not displayed in the library. How do I restore them? I have an ipod 5th generation that has the complete playlist and song library. I've looked in the itunes folder for previous versions, but they have either been deleted or overwritten by the new itunes software.
Here are typical layouts for the iTunes folders:
The Previous iTunes Libraries folder should only contain the dated library from each update. Worth keeping a few of those just in case. As long as iTunes is actually using the .itl file in the main iTunes folder anything else in the Previous iTunes Libraries folder could go. Check last modified dates and after deleting check things work before emptying the recycle bin.