Select the entire job folder to copy, not just the individual page components or files.
Selecting the contents of the job folder instead of the folder itself and copying the files to removable media results in a page that cannot be processed because the assign file for the job is missing. The assign file is located within the folder structure but is not visible on the Mac or Brisque. If you are using Brisque or PS/M version 5 or later, it automatically creates a hidden assign file when RIPing. The assign file is necessary for processing the CT/LW page.