1. You can't legally.
2. Download i-tunes click here then while you have this open connect your i-pod and it will be listed on the left of the screen. When you click on your i-pod it will show how much space you have.
Dell XPS 13 9370 (2018) review
Best Keyboards for Designers & Artists
What to ask Siri on the HomePod
Meilleurs VPN (2018)