How do I move my songs from iPod to new iTunes account

My brother is giving me an old iPod (either a Nano 4 or 5 not sure, coming from out of town). It has Cd's he owns copied to it. Can I sync it to to my iTunes on my computer? I want to sync for a backup, as well as I probably will end up purchasing a new iPod and would want to transfer songs. To the best of his knowledge there are no songs purchased from Apple Store. Thanks in advance.