sample.gif
==========
* Original filename:
  Universal_joint.gif
* Source:
  https://commons.wikimedia.org/wiki/File:Universal_joint.gif
* Attribution:
  Van helsing via Wikimedia Commons
* License:
  CC BY-SA (http://creativecommons.org/licenses/by-sa/3.0/)

sample.tif
==========
* Original filename:
  STSCI-H-p1918a-f-2000x2000.tif
* Source:
  https://hubblesite.org/contents/media/images/2019/18/4505-Image
* Attribution:
  NASA, ESA, N. Smith (University of Arizona), and J. Morse (BoldlyGo Institute)
* License:
  Public Domain

sample.webm
===========
* Original filename:
  Artefact_comparison_ToS_f15509.webm
* Source:
  https://commons.wikimedia.org/wiki/File:Artefact_comparison_ToS_f15509.webm
* Attribution:
  Mango Blender Open Movie Project, Blender Foundation via Wikimedia Commons
* License:
  CC BY (https://creativecommons.org/licenses/by/3.0)