: A catalog number for a digitized library or historical archive.
, such as gaming, medicine, or engineering? PPPE-083-CS.mp4
If you can tell me a bit more, I can help you figure it out: : A catalog number for a digitized library
: Internal videos for Professional Practice and Ethics or similar certification courses. such as gaming
Without more context, it is impossible to provide a "detailed story" as there is no record of this specific file in the public domain.