okej, tack för tipset fredrikb
jag hittade hur jag skulle göra på apples amerikanska hemsida;
Putting iPod mini or iPod (Click Wheel) into Disk Mode
1 Plug the iPod Power Adapter into an electrical outlet and connect iPod to the power adapter.
2 Toggle the Hold switch on and off. (Set it to Hold, then turn it off again.)
3 Press and hold the Menu and Select buttons for at least 6 seconds until the Apple logo appears.
4 When the Apple logo appears, release the Menu and Select buttons and immediately press and hold the Select and the Play/Pause buttons until the Disk Mode screen appears.
5 Disconnect iPod from the power adapter and connect it to your computer.
Så nu ska det nog fixa sig