Well, Anna, several of those DVDs should be perfect for you. You could play one in every room of your house, keep one in the car with the laptop, a couple at work, one at your best friend's place, and put the remaining one in a safe at your local bank...... sorry, couldn't resist.
I have an idea...... When Series 800 comes out we should try and get Alex and Ricky to sign Anna's copy. Or maybe Ricky could deliver it in person, turning up at Anna's house on his little yellow two-wheel thing.