http://www.mp3-box.org/downloading-mp3-to-ipod-nano/
Can two Mp3 players (ipod nano & mp3) work on the same itunes acct?
My son already has an ipod nano and an itunes acct. I recently bought my daughter a nextar mp3 player, when I tried to plug into the usb to download music to it, nothing happened. Do I need to get her own acct or just need help syncing up her mp3 player? HELP? I’m really not good with computers so I need all the help I can get 
only ipods work with itunes. you need to install the software that came with the nextar or use windows media player.
how to download music to your ipod nano or mp3 player for free