Tech Reality Check

Is it “live or is it Memorex?” Is emerging technology hype or reality?

Is it "live or is it Memorex" was an ad campaign for cassette recording tapes from Memorex. Could you tell if the sound was genuine, authentic and real from the artist, or was it a recorded copy? What separates today's hype in emerging technology from fact and reality?
crystal globe displaying the united states of america on a keyboard