These files are generally found within the "DataSet 9" release of the Epstein documents, which frequently list files with errors or intentionally mislabeled extensions.
It has been reported that numerous files listed as "No Images Produced" (labeled with .pdf extensions) in the Epstein dataset are actually video files. 209 mp4
Several links to these files (e.g., EFTA00141271.pdf , EFTA00280943.pdf ) have been listed on Reddit forums specifically dealing with the archiving of these data sets. These files are generally found within the "DataSet