TechRestore today announced a new iPod hard drive upgrade program for increasing storage capacity of any full-sized iPod. The offers door-to-door overnight service in the continental U.S. (as well as to international customers via its Self-Restore service). After scheduling the repair, the company sends a RestoreBox via overnight mail, which customers can use to return to the iPod back to TechRestore facilities. Within 24-hours of receipt, the company performs the drive upgrade and then returns it to the customers via overnight courier. The flat-rate iPod hard drive upgrade service is $120 (1st/3rd generation models), $130 (2nd gen), or $180 (4th generation); it includes all overnight shipping charges, parts and installation. A similar battery upgrade service is available for $80.