This internal 80GB iPod hard drive is compatible with iPod Video or iPod Classic (80GB). If the hard drive in your iPod Video/Classic is making strange clicking noises or you are receiving errors, your internal iPod hard drive may be damaged and requires a new replacement. Replaces original Apple iPod part number: MK8022GAA. Simple to install and suitable for the DIYer. Simply unassemble your iPod Video/Classic, remove the old internal hard drive and replace with the new hard drive.