Well given that you received encrypted data only, I don't see how a sensible person could hold
you responsible for any copyright violation in this case..
What could be more problematic is the following: I think that in UK the cops can ask you to
give them the key for any encripted data present in your computer and in this case you don't
even have the key!
From a (more sensible) technical perspective, sharing with ten servers means that regularly
you have to poll the server to check that the copies are still ok, I wonder how this is done?