Oh, silly American copyright! In the German equivalent of coyright,
Urheberrecht, there is the right to a
Privatkopie, private copy, which has been defined over the years to include all personal backups and up to 7 copies of a work shared with close family and friends, whether in the same household or not. For this purpose, it is even perfectly legal to break any DRM (
§108b UrhG).
Germans copyright critics keep complaining they don't have fair use, but in this case, fair use seems just plain dumb complained to the practical
Privatkopie.