how do you backup your ipod music to mac?

I believe have some music not purchased from itunes, so how do you transfer them to your mac? anyone have good idea?

How did the music get onto your iPod in the first place? Can you not just sync via iTunes?

Well if you bought those songs on iTunes I think it’s easy to get them back, because they should be linked to your account so you can download them for free again.
But if those music on your ipod are from other computers via itunes, you may not transfer them from ipod to pc because itunes can only transfer these fiels from itunes to your ipod touch. In that case you will need some other tools to do that. Google iPod Transfer and maybe you can find something useful.

Hi, I wrote an article ages ago on this when I had the same issue - hopefully it might be of some use to you too
http://www.rose.id.au/answers/how-to-co ... a-mac.html

1、 Open the ipod_control folder then open the music folder. Copy each one of those folders (should look similar to these: F00, F01 ...) onto your computer.
You can do this by creating a new folder on your desktop and dragging the files into the folder.
2.Open itunes and insert the new folder you created on your computer's desktop into: library ---> Music
3.You can now sync your ipod to this new computer with out losing all of your music.
More Reviews about iPod Music to Computer:
For PC: How to transfer and backup music/songs from ipod to pc.

For Mac: How to transfer or backup music/songs from iPod to Mac