US Patent 11766748 Method of repairing a disk stack

A method for repairing a disk stack includes providing a disk stack comprising a plurality of original disks, each of the original disks defining a groove pattern, the disk stack defining a damaged region; removing the damaged region from the disk stack to define an insert opening in the disk stack; providing a disk stack repair insert comprising a replacement disk segment; and inserting the disk stack repair insert into the insert opening to repair the damaged region.