Well I had the error 6 when restoring my ipot and finally figured how to fix it! 1.) click start and search this: %appdata%\Apple Computer\iTunes 2.) click on the "iPod Software Updates" then DELETE or MOVE the 2.0 Firmware! This is only for windows and you would only have this problem if you actually bought the firmware through iTunes. If you guys get the error 1600-1604, it means you are in RESTORE mode NOT DFU mode! (youtube "DFU Mode"