[ThomasThomas]

Just recopy to the new thingy every 20 years. Even if the copies were good would you have a DVD 100 years from now?

[Scoutmaster]

Even if the copies were good would you have a DVD 100 years from now?

Yes.

But I'd also have the five forms of storage media that were created during that 100 years. There's an Edison Home Phonograph with a cygnet horn not 20' from the comfy chair, with the two- and four-minute option and a nice collection of cylinders.

I can also hit my right elbow on a Victrola 'humpback' right now if I try hard enough, and I can see a Model XVI-L in the dining room. My DVD player won't play those cylinders and 78 RPMs.