Condo owner tape records association meetings. Board not happy

Because of serious inconsistencies in notes and agendas, I have begun taping condo association meetings I attend here in California. The board insists that is illegal and goes into closed session. I have been sworn at and threatened (on tape), and told whole meetings will become executive sessions. I'm under the impression that as a paying member and Californian, I am allowed to tape what is essentially a public meeting. Is that wrong?