Francois Ozon and Lars von Trier

Hitchcock - 21
Kurosawa - 13
Spielberg - 12
Coen - 11
Wilder - 11

Jaymole, do you have a collection online? I'd love to see it.

Steven Spielberg (15), followed by Martin Scorsese (11) and Woody Allen (10).

34 - Alfred Hitchcock
32 - Woody Allen
29 - Charles Chaplin**
19 - Ingmar Bergman
15 - Steven Spielberg
15 - François Truffaut
15 - Billy Wilder
14 - Howard Hawks
13 - Buster Keaton
12 - Frank Capra
12 - Stanley Kubrick
12 - Martin Scorsese
11 - Stanley Donen
11 - John Ford
11 - Akira Kurosawa
10 - Joel Coen
10 - Francis Ford Coppola
10 - George Cukor
10 - John Huston
10 - Mike Nichols

**includes both Image and WB discs of Chaplin's feature films.

I decided to cut it off at 5 or more. 18 Directors qualified:

Steven Speilberg - 13
Brian De Palma - 8
Martin Scorsese - 8
Oliver Stone - 8
Robert Zemeckis - 8
Mel Brooks - 7
John Landis - 7
Tim Burton - 6
John Hughes - 6
Sam Raimi - 6
Kevin Smith - 6
Paul Verhoeven - 6
David Zucker - 6
Francis Ford Coppola - 5
George Lucas - 5
Michael Ritchie - 5
Ridley Scott - 5
Quentin Tarantino - 5

Jess Franco-20
Dario Argento-22
Mario Bava-23
Kurosawa-14
Cronenberg-15
Hitchcock-20
Carpenter-28
Fulci-28

...and the usual stock directors add up to about another 20 with 10 titles or more in the library.

It would have to be Spielberg with a whopping 20 films:
AI, Amistad, Catch Me, Close Encounters, Color Purple, Duel, ET, Empire of the Sun, Hook, Indy, Indy 2, Indy 3, Jaws, Jurassic Park, Lost World, Minority Report, Saving Private Ryan, Schindler's List, Sugarland Express, The Terminal

Joe Dante (7), John Carpenter (6), Sam Raimi (5), Peter Hyams (3). With my collection it would take years to calculate the rest.

1. Akira Kurosawa - 16
2. Alfred Hitchcock - 5
3. Steven Spielberg - 5
4. Joseph L. Mankiewicz - 4
5. Terry Gilliam - 3

Francis Ford Coppola - 3

David Fincher - 3

James Cameron - 2

John McTiernan - 2

Ridley Scott - 2

Steven Spielberg - 2

Out of 21 DVDs.

Steven Spielberg - 13
Alfred Hitchcock - 8
Akira Kurosawa - 7
Kevin Smith - 6
Peter Jackson - 6 (if I count the TE's and EE's seperately)
Quentin Tarantino - 5
Coen Brothers - 5
James Cameron - 5

According to DVD Spot...
John Howard Davies & Ian MacNaughton... 14 due to Monty Python's Flying Circus

Oliver Stone... 11`

Wes Craven, I think I have 14

Alfred Hitchcock
Steven Speilberg
John Carpenter

Thanks for asking but regrettably, I don't. I myself would love to see my collection online as it would help me enormously. I have so many DVDs that sometimes I forget what I have.

A few other groupings:

14 - Ray Harryhausen films
42 - Hammer films
15 - Marx Brothers films

Just the two movies, unless X3 HP & LOTR movies are included.
Anyway, both are directed by Stephen Herek:
1) Don't Tell Mom the Babysitters Dead
2) Bill & Ted's Excellent Adventure.

p.s. bear in mind I only have 44 DVDs at this stage.

Without counting I pretty sure its:

Hitchcock
Bergman
Kubrick

But I could be wrong, when I find a director/writer I like I tend to get all the titles from them.

Okay, let's see ...

* Alfred Hitchcock - 42 titles, plus the 4 'Presents' discs. Don't have that new WB box yet, but I have everything else that's in R1
* Robert Altman - 22 films counting the Brazilian import of 'Kansas City' and the Canadian 'Caine Mutiny' disc, plus 'Tanner '88', the one 'Bonanza' of his eight which is on DVD, a R2 DVD of 'Gun' (all six episodes), and 'Aria' (which he did a segment in) ... still haven't picked up 'California Split'
* Charlie Chaplin - 9 films (both 'Modern Times' releases), 7 discs of shorts (Mutuals, Essanays, First National), plus I'm not sure how many; I have a few discs from the Madacy "Essential" collection, covering the really early shorts, but they're not listed on dvdaf, so I'm not sure off-hand. Still need 'The Circus', 'Monsieur Verdoux' is on its way to me.
* Steven Spielberg - 15 films, counting the 'Something Evil' bootleg. Still need 'Color Purple', 'Schindler's List', and 'The Terminal'. (I have a really good VHS copy of 'Sugarland', so I'm holding off to see if a better release comes along.)
* Stanley Kubrick - 12 films plus the doc disc, plus the unreleased stuff on VHS. Still haven't gotten the alt cut of 'The Shining' from R2, but I do have 'Eyes Wide Shut' that way. Haven't decided if I'm buying the new mis-framed 'Strangelove' disc.
* Martin Scorsese - 11 films plus 'New York Stories'.
* John Carpenter - 10 films, including both 'Halloween' releases and the British imports of 'Starman', 'Prince of Darkness', and 'They Live'. Still don't have 'Precinct 13', 'In The Mouth of Madness', or that French 'Vampires' disc. Oh, and I have to upgrade "The Thing" at some point.
* Oliver Stone - 9 films, plus the theatrical version of 'JFK' from R2. Still don't have 'Born on the Fourth', 'Natural Born Killers', or 'Comandante' from R2. [Sadly, when my DVD collection was stolen last year, one of the things I lost was the dir cut of NBK signed by Stone.]
* Woody Allen - 8 films, plus 'New York Stories'. I'd have more of these, as I love Allen, but I already had them all on VHS, and the upgrade doesn't add much. So I'm doing it gradually, as I find them cheap.
* Ridley Scott - 7 films, two versions of 'Alien'. Don't have 'Matchstick Men', and I'm waiting for a better release of 'Blade Runner' (which, I believe, is one of the signs of the apocalypse).
* the Coen brothers - 7 films. I have a few others on VHS, still have to grab 'Man Who Wasn't There' and 'Ladykillers'.
* Steven Soderbergh - 7 films, counting the Brazilian release of his Yes concert movie. Still need to get a few of the good releases for his lesser movies, though.
* Peter Jackson - 6 films. Just waiting on better releases for 'Feebles' and 'Frighteners' ('Heavenly Creatures' could be a more special edition too), haven't picked up the theatrical LotRs yet.

Then there's Terry Gilliam (5 plus 'La Mancha'), Kevin Smith (5), Sergio Leone (5 plus the old GBU disc), George Romero (5 plus 'Two Evil Eyes'; need to get at least one of the Martin discs, though), Tim Burton (5), Sam Raimi (4), James Cameron (4) ... people I'm all or mostly caught up on, just waiting for better releases on the rest of their titles. [Also, I have five Robert Zemeckis movies, but that's largely because of the 'Future' trilogy.] And non-prolific people; I'm 2 for 3 on Terrence Malick, 4 for 5 on David Fincher, 3 for 5 on Bryan Singer, 2 for 4 on both P.T. & Wes Anderson as well as Quentin Tarantino, 2 for 5 on Cameron Crowe, 2 for 2 on both Darren Aronofsky and "Savage Steve" Holland and, oddly, 3 for 5 on Frank Hennenlotter. But they don't have enough films to get on the upper list, even if I had them all.

Next year, I need to put a bit of focus on Francis Coppola (3, but I haven't gotten the Godfathers yet), David Lynch (3), David Cronenberg (4), David Lean (2), Rob Reiner (4; I want to fill the gaps between 'Spinal Tap' [I have both versions] and 'Few Good Men'), Peter Bodganovich (only 2, and neither is 'Last Picture Show'), and the Christopher Guest collection (I don't have *any* just now). [A lot of the odd gaps in my collection are because my DVDs were stolen about a year and a half ago, so there's some stuff I haven't yet replaced on the grounds that I already watched it; I mean, I've seen everything I need to from that 'Godfather' box, for instance, so I don't need to get it again right away.]

I suspect it is Steven Spielberg. I have 22 films that he directed. This is an interesting subject though, I think I might add a column to my spreadsheet that I keep track of my DVDs with and put the director in there.

Alfred Hitchcock
Woody Allen
Steven Spielberg
Stanley Donen

Hitchcock (48)...still waiting for Lifeboat (R1)...I have the LD to hold me over though. Most of his others I have on VHS (old silents that aren't available on DVD)

This big question for me is who is #2? Not sure!?

Martin Scorsese, Steven Spielberg, Ridley Scott, and Terry Gilliam.

Kubrick makes up a big chunk with his set of course! :)

Strange that this is the number of DVD's I own from these various directors because if I were to actually rank my favorite directors, it would be a very different order. I guess it has a lot to do with DVD availability.

22- Steven Spielberg
15 - Woody Allen
12 - Stanley Kubrick
11 - Oliver Stone
10 - Joel & Ethan Coen
10 - David Lynch
10 - Ridley Scott
9 - John Carpenter
9 - Francis Ford Coppola
8 - Terry Gilliam
8 - Tony Scott
7 - Sam Raimi
7 - Steven Soderbergh
7 - Robert Zemeckis
6 - David Cronenberg
6 - John Glen
6 - George Miller
6 - George A. Romero
5 - Richard Donner
5 - David Fincher
5 - Akira Kurosawa
5 - Sergio Leone
5 - George Lucas
5 - Michael Mann
5 - John McTiernan
5 - Paul Verhoeven

Spielberg / Peter Jackson with 3 each - no joke. I've been here for over a year too...

close to 30 takashi miike films : ofcourse, this is highly effected by the amount of output a director has... this is only about a third of miikes...