Overlaying OverDrive EContent Bibs
When your library receives fully-cataloged eContent bibliographic records to overlay existing OverDrive records, a staff member imports these records using an import profile set up to: detect duplicates based on the 037 tag; overlay these duplicate with the full incoming records; and retain tags that create resource entities.
Important:
Inform the bibliographic record vendor that the fully-cataloged eContent bibliographic records provided to overlay integrated eContent bibs must have the following requirements:
The records must be MARC or MARCXML bibliographic records.
The 037 tags must be retained because that tag contains the eContent item identifier and serves as a match point to detect duplicates during importing.
See also: Importing Fully-Cataloged Bibs to Overlay Axis 360 Bibs