Michigan doesn't have a rule regarding that.  The steno notes are the record with a stenographic reporter, which belongs to the court.  I would suggest following the NCRA Advisory Opinion 38 which in part says: The Committee has determined that absent a court order to do so, the NCRA Code of Professional Ethics does not require that a reporter provide a copy of any backup audio media that the reporter uses to make the official transcript of a proceeding.  However, Provision No. 1 of the Code requires that if the reporter chooses to give a copy to a requesting party, the reporter must offer to do so for all parties to the proceeding.  Provision No. 4 also requires that the reporter maintain the original backup audio media and provide only a copy to any or all requesting parties unless ordered by the court to provide the original media.  In that case, the reporter must keep a copy.  Finally, the Committee cautions that releasing copies of the media may result in a violation of Provision No. 4 of the Code if the media contains inadvertent, off-the-record or privileged information that should not have been released or disclosed.