Is a writ of appeal appropriate to review a discovery order that may undermine privilege?

Additionally, this court has ruled in a criminal case that writ review is appropriate when the petitioner seeks relief from a discovery order that may undermine a privilege, " 'because appellate remedies are not adequate once the privileged information has been disclosed.' [Citations.]" (People v. Superior Court (Mouchaourab) (2000) 78 Cal.App.4th 403, 413 (Mouchaourab); see also Roberts v. Superior Court (1973) 9 Cal.3d 330, 336 [prerogative writs are available where a discovery order allegedly violates a privilege].)