Does anyone know how to scan for bad sectors on your iPod? I have a problem that when I'm syncing songs it gets to the 9.5 gig mark and then craps out. It can't load any songs after that point. What's up?

HDSMART Data says this

Retracts: 571
Reallocs: 341
Pending Sectors: 0
PowerOn Hours: 5003
Start/Stops 647
Temp: Current 31 C
Min 8C
Max 57C

Is that a high number of Reallocs?