I have an ipod, and there is a way to set your ipod to a manual setting so it can be used as an external hard drive. However, I think you can only have your ipod set to one itunes account. If you set up a new one it may erase the songs already on the ipod. If you are going to borrow someone's ipod I would recommend giving them the songs you want in the playlist, and if they don't have them give them the cds to add the songs onto the ipod or buy them an itunes card to download them. I have a green ipod mini that I no longer use since I upgraded to the nano. If you want to buy it PM me.