thanks very much for all your work helping the HotPotters on the French speaking forum. Of course, you are welcome to use my server
to demonstrate and experiment. Very welcome.
I can confirm that the import script for HotPot quizzes, "question/format/hotpot/format.php", tries to convert all relative links to absolute links, in the same way that the HotPot module itself does. This means that images, media players and media files should appear as expected in the standard Quiz module. If they don't, please do not hesitate to let me know.