Migrate lecturemedia + digitized records #2167
Description
See the analysis after weblectures migration (records not marked as digitized).
486 record with lecturemedia files are not migrated. See search link
To migrate these records we need to update current marcxml transformation rules, or create a new model instead of using current VideoLecture model.
See the draft PR that adds new _curation fields to transform the specific fields for digitized records.
Even though we put these fields into _curation this is not enough. Current rules should be reviewed, updated. Fields that normally appears only once (like copyright, language) can be appear multiple times in digitized records, so we shouldn't miss any value.
16 records are missing a valid date. They need curation before migrating them.
Most of these records has multiple master video files. Migration with metadata/files should be tested.