I was wondering if i will lose any content if I updated the software from 3.1.3 to 6? Most of the songs that I have my friend put on my ipod from her music library of itunes and cd's.
Your 3rd gen cannot be updated to iOS 6, but it can be updated to iOS 5.
You need to download the latest version of iTunes and then search Help for instructions about transfering your music to your library...
The third generation iPod cannot be updated to iOS 6. It can only be updated to 5.1.1. You will not lose any data when updating your iPod.
Just the same, I highly recomend backing up your device before you update/restore it.
All the synced media like apps and music have to be in the iTunes librry on the computer you used to do the uPdate. As the firsst step of the update iTunes makes an backup of the iPod but the backup does not included syned media.
Retrieving data ...