ITunes Library Messed Up

Question

Today I opened up my iTunes and a pop-up appeared saying that my library is damaged. I started out by trying some things like opening other libraries, but it didn't change.
In the end I used Vistas System-Recovery (is that what it's called?) to set my whole computer back, but it still remained the same.
I then just re-added all the music, and all is well, but I just found out that all playlists are gone.
For normal ones that's not a big deal, but the iTunes ones (Top 25 Most Played, My Top Rated, Recently Added, etc.) are also gone, which is really weird.
Is there any way to get those back?

Answer 1

If you recreated your library by adding all your music back, presumably you lost all the information such as counts and ratings. Although it is easy enough to create the playlists you want, the library may not contain the information they need to work.
Here is how to do a recently added list, but everything may show up as recently added:
Recently Added play list
This is just a smart playlist and you can make a new one.
File>>New smart playlist
Mine is as follows:
Match following rule – unchecked
Limit to checked
Limit to 25 items selected by most recently added
Live updating checked.
But you could have something like
Match following rule checked
Date added is in the last 2 weeks
Limit to unchecked
Live updating checked