somebody has to open the iPod and replace the hard drive. The cheapest way is to do it yourself and you should get away with around $70. The part is available on ebay. Here's a iPhone Repair guide on http://www.portatronics.com/guide how to disassemble an iPhone. Maybe a tech savvy friend can do it for you. If you want to pay to have a service do it for you there are third party Services such as ifixit.com