A question to the community: would it be a (legal) problem if I decided to download digital copies of the physical books I already have in my bookshelf? I was thinking on using Anna's Archive for that. Hobby project.
Yep, this sounds like an issue. So the idea from MP3 early days of "let me download these files as a backup before I lend my CD collection to my cousin" is not a real option.
It may also be worth noting that most jurisdictions are only interested in distribution, not downloading, so the chances of prosecution are slim. A small company you may have heard of called Meta is currently using a similar argument in US court [2].
[1] https://ebooks.stackexchange.com/questions/1111/i-have-a-pri...