Although there is little authority in Oklahoma, orders resolving discovery disputes between parties and orders relating to discovery from non-parties are not appealable orders. In general, the subject of an order regarding discovery, including orders granting or denying a motion to quash or motion for protective order, may challenge the order by extraordinary writ under Okla. Const. Art. 7, § 4. See Floyd v. Ricks, 1998 OK 9, 954 P.2d 131; Inhofe v. Wiseman, 1989 OK 41, 772 P.2d 389.The procedure governing writs is set out in Okla. Stat. tit. 12, §§ 1451, et seq.