Hello, I think we need to be clear here. Who is asking what? It seems there are two people asking slightly different issues here and none are getting on to my little head

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Could we please clear what we're trying to achieve here?
Here is a little guide how to back up your songs
How to back up your media in iTunes
Here is some guide to make the ipod as removable hard drive and then transferring songs.
"To use your iPod as a hard drive:
- Plug your Nano into your desktop and fire up iTunes.
- In the options (this varies depending on iTunes version), select "Enable Disk Use". The iPod will now show as a removable hard drive in My Computer.
Note: Selecting "Manually Manage Songs & Playlists" also enables the iPod to be used this way. I personally have this option on so I don't have to worry about the auto-syncing. This option lets you have total control.
I'm pretty positive moving purchased music is blocked with DRM but you can get around this by burning the tracks to CD, then re-ripping them. It's a pain but this by all accounts is the only way around it."
If none of the above works for you then I would suggest please explain clearly what has happened and what would you like to achieve and am sure everyone will be more then happy to help you

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Regards