In the United States there are a number of exceptions to the ban on circumventing DRM: https://www.eff.org/deeplinks/2015/10/victory-users-librarian-congress-r

In the United States there are a number of exceptions to the ban on circumventing DRM: https://www.eff.org/deeplinks/2015/10/victory-users-librarian-congress-renews-and-expands-protections-fair-uses https://www.eff.org/deeplinks/2015/10/victory-users-libraria...