Comment by seanhunter
5 hours ago
You don't. It is public domain. You pay that if you want to get it from them. This is the same as I can get a free pdf of "Linear algebra done right" from Sheldon Axler's website but if I want to get it from Springer I pay $50 or whatever it is.
That is a very confusing state of affairs!
Repackaging and selling free data is a very old business model.
In many cases, it's value-added, because the bundler may also do some curation and interpretation.
Not sure that's what's happening, here, though...
You can also buy licenses to use AV1, a royalty-free codec.