Yes, you can augment or correct the trial court record (including through the introduction of new evidence) by following the procedure set out below:
(e) Augmenting or correcting the record in the reviewing court
(1)Except as provided in (2) and (3), rule 8.410 governs any augmentation or correction of the record.
(2)The petitioner must serve and file any request for augmentation or correction within 5 days-or, if the record exceeds 300 pages, within 7 days; or, if the record exceeds 600 pages, within 10 days-after receiving the record. A respondent must serve and file any such request within 5 days after the petition is filed or an order to show cause
has issued, whichever is later.
(3)A party must attach to its motion a copy, if available, of any document or transcript that the party wants added to the record. The pages of the attachment must be consecutively numbered, beginning with the number one. If the reviewing court grants the motion, it may augment the record with the copy.
(4)If the party cannot attach a copy of the matter to be added, the party must identify it as required under rules 8.122 and 8.130.
(5)An order augmenting or correcting the record may grant no more than 15 days for compliance. The clerk and the reporter must give the order the highest priority.
(6)The clerk must certify and send any supplemental transcripts as required by rule 8.450(h). If the augmentation or correction is ordered, the time to file any petition or response is extended by the number of additional days granted to augment or correct the record.
This comes from California Rules of Court
Rule 8.452. Writ petition to review order setting hearing under Welfare and Institutions Code section 366.26
which is available here:
You can also see Rule 8.410 Augmenting and correcting the record in the reviewing court here:
So, in sum, yes you can submit evidence or materials that are not on the record, but to do so you must first file for a motion to augment the record as laid out above. You would need to obtain transcripts of the interviews in order to have them considered rather than attaching a DVD, as the court cannot consider a DVD without an accompanying transcript.
I hope the above information is helpful.
Please let me know if you have any clarifying or follow up questions as I want to ensure that you are completely satisfied with my service.
If not, PLEASE remember to rate my answer POSITIVELY (Excellent Service) so I get credit for my work. I put significant time and effort into my answers, and DON’T receive anything for my work unless you rate my answer positively. It doesn’t cost you anything extra and is necessary even though you’ve made a deposit. Please also rate me highly (10) when you receive your customer satisfaction survey as well.
Thanks and best of luck!