To synchronize the iTunes Library on two different computers running Mac OS 9.:
1. Share the hard disk of one computer.
2. Connect to the computer with the shared hard disk.
3. Open the File Synchronization control panel.
4. Open your computer's hard disk.
5. Open the Documents folder.
6. Drag the iTunes folder into the left or right area on the File Synchronization control panel.
7. Open the shared hard disk of the other computer.
8. Open the Documents folder.
9. Drag the iTunes folder into the opposite area on the File Synchronization control panel.
10. Click Synchronize.
For more information on sharing files with other computer, choose Mac Help from the Finder's Help menu and search on "file sharing".