Cal. Code of Civil Procedure § 2025.560

(a) An audio or video recording of deposition testimony made by, or at the direction of, any party, including a certified recording made by an operator qualified under subdivisions (b) to (f), inclusive, of Section 2025.340, shall not be filed with the court. Instead, the operator shall retain custody of that recording and shall store it under conditions that will protect it against loss, destruction, or tampering, and preserve as far as practicable the quality of the recording and the integrity of the testimony and images it contains. (b) At the request of any party to the action, including a party who did not attend the taking of the deposition testimony, or at the request of the deponent, that operator shall promptly do both of the following: (1) Permit the one making the request to hear or to view the recording on receipt of payment of a reasonable charge for providing the facilities for hearing or viewing the recording. (2) Furnish a copy of the audio or video recording to the one making the request on receipt of payment of the reasonable cost of making that copy of the recording. (c) The attorney or operator who has custody of an audio or video recording of deposition testimony made by, or at the direction of, any party, shall retain custody of it until six months after final disposition of the action. At that time, the audio or video recording may be destroyed or erased, unless the court, on motion of any party and for good cause shown, orders that the recording be preserved for a longer period.