Music can be removed from the iPod in a couple of ways that i know
A freeware programme called Ephod can do it, but you'll need to read the instructions as i've forgotten how it works
Or, the long way, simply connect the iPod to a computer, open iTunes and burn disks of the tracks you want onto re-writable DVD's or CD's then rip them into MP3's onto your PC, long winded but it works but mosty importantly it's NOT illegal