closure sought cannot be obtained from sources other than the nonparty." Kooper, 74.1.3d at 16-17 (quashing non-party subpoenas). Indeed, courts in the First Department routinely deny non-party disclosure on this ground. See, e.g., Tannenbaum v. City of New York, 30..3d 357, 359, 819.1.2d 4, 6 (1st Dep't 2006) (den