Long-term backup [dive into mark]

In the post Long-term backup at [dive into mark], Mark asks, “How do you back up 100 GB of data per year for 50 years? Or even 10 years?” The comments provide a valuable snapshot of much current thinking about how and where to save data for the long term. If that data is prized famliy pictures and video, as well as important documents in digital form, this is a concern worth spending time to think about.