Currently Being ModeratedApr 29, 2012 10:25 AM (in response to kazzie28888)
Copy the music to the computer by using a third-party progtam like one of those discussed here:
Then connect the iPod to the computer and make a backup by right clicking on the iPod under Devices in iTunes and select Back Up
Restore the iPod from that backup
Note that the backup that iTunes makes does not include synced media like apps and music.