Omniscificer trick with Autohypnosis sounds good, but ...
Memorize
You can attempt to memorize a long string of numbers, a long passage of verse, or some other particularly difficult piece of information (but you can’t memorize magical writing or similarly exotic scripts). Each successful check allows you to memorize a single page of text (up to 800 words), numbers, diagrams, or sigils (even if you don’t recognize their meaning). If a document is longer than one page, you can make additional checks for each additional page. You always retain this information; however, you can recall it only with another successful Autohypnosis check.
This seems more about facts, figures, data or books.
Not quite like having a semi-permanent Video camera.
And you'd have to do it over and over.
Maybe a small toned down H.I.V.E. could work.