Unknown Error Occurred (-50)

I was having trouble syncing my 3g 30GB ipod to iTunes on my MacBook Pro so I restored it to factory settings and now when I try to sync it I get the following error "The iPod "name" can not be synced. An unknown Error Occurred (-50).

Tell me this isn't a fatal error.

Thanks,

-d

Have a look at this guide....

12 Most Common iPod Sync Problems & How to Fix Them

It goes from simple to more complex, but is very comprehensive.