Source:  FILESYS.NLM

Explanation:  Data that was migrated to a writable disk player (or jukebox) for storage cannot be found. The Data Migration Look Up Key is the pointer that tells where stored data is located in the CD. The directory entry for the file containing the data still exists, but no data exists in the file.

Action:  Unless there is a backup of the file, the data is lost. Delete the file from the directory.