My 160 GB IPOD classic, starts to sync but when it get to 280 song it completes the sync and when I unplug it there are no songs on it. I have tried everything I could on the internet and so far nothing seems to work. I was able to get some info from advanced data. retracts 4, reallocs 321, pending sectors 8, Power on hours 75, start/stops 101, temp current 25c, temp min 23c, and temp max 54c. Can someone tell me if it is the harddrive etc. Thanks