You can't segue on an ipod. You can on a Ginger, though. Or, a Ginger is a Segway, of sorts.
On a PC, if under Control Panel>Folder Options you select "show hidden folders" in the View tab. Next go to your ipod. There is a folder on the ipod called control that has music folders in it (i can't remember what they are called, the previously hidden folders should look semi transparent). You can then just drag and drop the music from each of the folders (f01 to whatever) to your PC. As long as the music is tagged ok it'll all get sorted out in itunes.