Please don't stoke my paranoia any more...') I have so much stuff that needs archiving reading etc. Same goes for audio and video. I lose sleep wondering whether my discs will endure. I have been doing all sorts/ Floppies (too small) flash USB (still a bit small), Zip (clumsy and incompatible) CDs (OK but how long will they last?) DVD -R. +R, and RW (argh!) Never mind the medium what about being able to find a computer and s/w to read them?
Then you should keep dupes of the back ups in different locations (Ihave a locker nearby in the Big Yellow Box for that). oh it goes on and on.
Another part of me subscribes to the notion that we are in a waterfall of information so just let it wash over you and await the next lot.... life's too short!