There is something to be said for printing shots.. But then you get into how long the prints will last, and that really depends on a lot of factors. Most of those factors are theoretical because you just won't know if the paper/ink/dye is genuine or if it is counterfeit, how it will react to your storage environment, etc, or whatever. If you go that route, I really don't know whether ink jet dyes or photo prints would be better... I have a bias for photo but there is a simplicity to spraying dye on paper that seems attractive.
Similar for dvd's, cdr's and hard drives. You just have no idea when a particular disc will start to give errors. And when it does, recovery is more likely if it is pure wav rather than flac. So, as was mentioned in another thread, don't store everything on the same brand, and especially batch, of media. IBM had some drives back many years ago called "deskstars" (deathstars). They had a manufacturing or design defect that caused premature failure. Some people bought multiples of those drives and then were faced with ticking time bombs of data loss once the problem became known. Big headache, even for those who didn't lose data.
DVDs are a pain. They're slow to write and read, they age, they're bulky, they're expensive and I haven't really noticed them coming down in price like hard drives. NOBODY is going to want to "refresh" their DVD backups in several years... whether it is 5 years or 10. In 5 or 10, hard drives will be just that much cheaper in terms of gig/$$. Think about what it will take to test/validate 1 TB of DVDs vs. a 1 TB or two 500GB hard drives in several years? Who has time to mess with approx 220 DVDs? It is a question when we stop dealing with DVDs, not if.
Someone recently posted something I worry a lot about - theft. Their external drives were stolen during a break-in.
The more I think about DVDs, the more I want to move away from them as part of my backup/archive strategy. Though I still get a feeling of security when I take the step of burning masters to a dvd. In some ways it feels more tangible than a hard drive backup. I can drop a dvd from five feet and probably still read it, etc....
24/96 is a big headache... and I have been ignoring my intermediate edits of those masters. Some of those intermediates have hours of work in them. And 24 bit multi-tracks? Ugh. I'm glad I don't do video.