Movies on DVD

I have been cataloguing my movie collection. My most popular director is Alfred Hitchcock with 17 movies, followed by Peter Weir with 9, Clint Eastwood and Ingmar Bergman with 8 each, The Coen Brothers, James Ivory, Martin Scorsese and Steven Spielberg each have 6, Billy Wilder, Francis Ford Coppola, John Huston, Mike Leigh, Stephen Frears, William Wyler, Stephen Poliakoff, and David Lean have 5 and John Ford, Steven Soderbergh, Woody Allen, Peter Jackson, Leo McCarey, Howard Hawks and Christopher Nolan have 4 each. Anyone else has three or fewer. The total number is 579, but I still have a couple of dozen still to catalogue.