the appellant "claims a privilege of non-disclosure relating to materials that another party has been directed to pro- duce"); Int'l Horizons, Inc. I. Comm. of Unsecured Creditors (In re Int'l Hori- zons, Inc.), 689 F.2d 996, 1001-02 (11th Cir.1982) (holding that an order compel- ling production of alleg