Say I become a subscriber for some of the magazines for a month or two but later cancel the subscription. I think maybe even reinstall my PC. Would I be able to download back all my old copies of my magazines I paid for? Or do you need to keep a physical copy with you by saving a soft copy in a backup drive on the PC? Also, if I have more than one apple device, and I purchase on another device, would that other device be able to download the same copy of the article, similar to what you can do with sharing music?