Solution:
- Download iExplorer
- Load it up and right click and "mount" iPod
- load up terminal and type:
- defaults write com.apple.finder ShowAllFiles YES
- go to the apple at top left > Force Quit ...
- Click on finder and "Relaunch"
- Load up a new Finder window, go to the iPod > iPod_Control > Music
- Copy the Music Folder to your desktop
- load up "Terminal" again and type:
- chflag nohidden ~/Desktop/Music
- chflag nohidden ~/Desktop/Music/*
- Now you can load up iTunes and copy the music folder onto it
- Sorted!
- Oh, you probably want to not show hidden files anymore so type:
- defaults write com.apple.finder ShowAllFiles NO