It sounds like you're referring to a specific adult film release from 2002 involving (Italian director) and Marc Dorcel (French production company), with the technical tag "WEB-DL Repack" — and you're noting that the story is interesting.
If you're looking for rather than a download link: many fans of that era note that Salieri’s Faust retelling had more character development, period costumes, and psychological themes than typical mainstream adult films — hence the "interesting story" remark. faust mario salieri marc dorcel 2002 webdl repack