If more than one appeal is taken from the same judgment or a related order, only one record need be prepared, which must be filed within the time allowed for filing the record in the latest appeal.
If there is more than one separately represented appellant, they must equally share the cost of preparing the record, unless otherwise agreed by the appellants or ordered by the trial court. Appellants equally sharing the cost are each entitled to a copy of the record.
Cal. R. Ct. 8.839