WHAT happen if I connect iPod to sync with iTunes on Mac book pro?

pinoiPod wrote:

I'm afraid to loose all songs in iPod, trying to synch from iTunes to iPod

IF you're syncing to a different itunes/computer that is expected behavior it will wipe the ipod and replace it with contents of said itunes.'

If this isn't the issue then please explain in detail the issue.

I found my classic iPod last week and would love to sync it or upload new music from my new MacBook and I am drawing a blank.