Most decks of playing cards memorized by a single sighting

Dave Farrow (Canada) memorized on single sighting a random sequence of 59 separate packs of cards (3,068 cards) at CTV Studios, The Daily Planet, Toronto, Canada on 2 April 2007. The attempt took 4 hrs 58 min 20 secs not including breaks. Dave made just one mistake during the entire attempt which he corrected unprompted.