there is a solution below with iPod application -Aniosoft iBackup,It enables you to transfer iPod's music and other content to any storage device and iTunes as well. And both the backup in the storage device can be recovered and restored with no any change and no any risk.And the data in the iTunes is quite in accord with the iPod's data including its playlists,rating and etc.
How to make a transfer from one iPod to another iPod?
1,install and run Aniosoft iBackup and plug your iPod from which you want to transfer music to the computer in which has been installed an iTunes..
2,transfer the iPod’s music to iTunes with Aniosoft iBackup and also a music backup can be made in any storage device at the same time.
3,unplug the iPod and plug another iPod to which you want to get transferred music to the computer and sync it to the iTunes. Then another iPod has gotten the same content as the former iPod.
Here is the link:
http://www.aniosoft.com