The topic itself might be easy to answer, but I do feel that it is not that simple and there is no single right answer either.
For example, the data (pictures, videos etc) might have value for the younger generation, but if you encrypt it, those will be gone after you are away. I know that that is a far fetched topic, but still valid. I think that one big question is that how do you document all the places where your data is stored an in which format for the younger generation, so that they can access it and know it that it is there.
For the physical devices, like the old disks, the weak point has been the controller boards, and for the floppies, I must have stored them in near speakers etc. CD's and DVD's must have gotten too much UV radiation from the Sun. Once I did try to keep up with the storage media wars, but it was too time consuming and error prone as well. And I did have setup offsite backup, but the upload bandwidth was too narrow to handle the huge data uploads, some days 32-64GB of raw images.
During the years I have been thinking that maybe it would make sense more to develop some kind of software to provide data to paper conversion, such as High Capacity Color Barcodes. Then I could just write a software which would convert the data into raw photo files and then ask the some shop to print them on some real photograph paper. This way the data would be accessible for the next generation and it would be kept private, while the source code and technical papers would be made available as open source. But having something like that might not be doable right now, giving that the resolution which the images can have might not be good enough to store more than few 100kb per image. But it would be good enough for storing some source code. Does this sound like a good idea? As if it does I could start to work on it on GitHub on my spare time.
For this I did do one experiment few years ago, where I was checking how fast I could transfer data using barcodes. I made a software which was synchronizing data between mobile phone and desktop without any cables or wireless connections. It was just using the display and the camera. The funny part for that is that the laptop failed and the data was lost, but the idea was simple and it worked.
But I do thank you for your time and I feel a lot better knowing that I am not the only one puzzled by this long term data storage issue.
I know that it is obvious that the F-Secure realized that competing against the big players, such as Google and DropBox, might not make any sense.
However it makes me wonder:
Who do you trust your data?
And who really owns it?
What about in 3-6 years from now?
How should I make sure that I retain access to data today from 20 years from now?
I am sure that I have a lot of floppies and old IDE disks from 90s around here, but no means to access them, and some of the CD/DVD's has gone bad as well. And now at the time of the SSD disks, there is no physical data writing which might make the data recovery impossible to be done.
Link to Original Source
LOL. Or even the "Backdoor of Things"
Q: How many people does notice that a light bulb has worn off before you do?
A: Your wife, kids and the guy at the NSA.
I am pretty sure that was the original meaning.
oh, you are right, it must be Backdoor v2.0.
I think that the story has a misleading content, as it is not the Nokia itself, it is just some OEM from China with a license to use Nokia brand.
From their press  release:
"The N1 will be brought to market in Q1 2015 through a brand-licensing agreement with an original equipment manufacturer (OEM) partner responsible for manufacturing, distribution and sales."
"The OEM partner is responsible for full business execution, from engineering and sales to customer care, including liabilities and warranty costs, inbound IP and software licensing and contractual agreements with 3rd parties"
The blackmailer had gotten hold of the Symbian encryption key used for signing. The code is a few kilobytes in size. Had the key been leaked Nokia would not have been able to ensure that the phones accept only applications approved by the company.
What will happen today?