Currently Being ModeratedMar 17, 2013 4:16 AM (in response to Thomsund)
Take a look at this link, http://support.apple.com/kb/HT1296
Currently Being ModeratedMar 17, 2013 4:22 AM (in response to Thomsund)
The iTunes content sync is one-way: Computer to Phone. For purchased iTunes content, you can transfer that from your phone to your iTunes library by right-clicking the phone in the left device pane & selecting: "Transfer Purchases". Or, you can re-download it for free directly to your iTunes library:
If you have non-iTunes purchased music on your phone, you'll have to use third-party software to extract it from your phone.