Here is the partial weekly DVD sales ranking for October 12th - 18th.
DVD
*1, 5,772 *66,998 Gintama - Shiroyasha Koutan
*2, 2,614 824,022 Gake no Ue no Ponyo
*3, 1,995 *21,754 Bleach - Fade to Black: Kimi no Na wo Yobu Normal Edition
*4, *,*** ***,*** Bakemonogatari vol.1 Limited Edition
*5, *,*** ***,*** My Neighbor Totoro
*6, *,*** ***,*** Bleach - Fade to Black: Kimi no Na wo Yobu Limited Edition
*7, *,*** ***,*** Saki vol.4
*8, *,*** ***,*** Crayon Shin-chan Movie 10: Arashi wo Yobu Appare! Sengoku Daikassen
*9, *,*** ***,*** Hetalia Axis Powers vol.4 Limited Edition
10, *,*** ***,*** Sengoku BASARA vol.4
11, *,*** ***,*** Fullmetal Alchemist: Brotherhood vol.2
**, *,*** ***,*** (Monsters Inc.)
12, *,*** ***,*** Castle in the Sky
13, *,*** ***,*** Usavich - Season 3
14, *,*** ***,*** Black★Rock Shooter Pilot Edition
15, *,*** ***,*** Mobile Suit Gundam OP/ED vol.1 20th Century
16, *,*** ***,*** The Melancholy of Haruhi Suzumiya (2009) Endless Eight I & II Limited Edition
17, *,*** ***,*** Kuroshitsuji vol.9
**, *,*** ***,*** (Madagascar 2)
18, *,*** ***,*** Mobile Suit Gundam: Char's Counterattack 30th Anniversary Collection

Blu-ray
*1, 2,564 39,815 Bakemonogatari vol.1 Limited Edition

Additional news:
The DVD of "Tengen Toppa Gurren Lagann Movie Lagann-hen" will be released on January 27th, 2010.

Sources
Youtaiju
Neowing
Mainichi

ref. the full data of the last week's ranking
DVD
*1, 8,411 *61,226 Gintama - Shiroyasha Koutan
*2, 7,648 **7,648 Sengoku BASARA vol.4
*3, 7,514 **7,514 Saki vol.4
*4, 3,827 *19,759 Bleach - Fade to Black: Kimi no Na wo Yobu Normal Edition
*5, 3,590 *19,103 Bakemonogatari vol.1 Limited Edition DVD
*6, 3,097 **3,097 Valkyria Chronicles vol.3
*7, 2,909 **2,909 To Heart 2 AD Plus vol.2 Special Edition
*8, 2,791 **2,791 To Heart 2 AD Plus Limited Edition
*9, 2,557 *24,690 Bleach - Fade to Black: Kimi no Na wo Yobu Limited Edition
10, 2,508 821,408 Gake no Ue no Ponyo
11, 2,231 **2,231 One Piece 10th Season vol.1
12, 1,743 **1,743 Shinkyoku Soukai Polyphonica Crimson S vol.4
13, 1,682 **1,682 Spice and Wolf II vol.1 DVD
14, 1,675 **1,675 Naruto: Shippuuden Mitsuo Shutsugen no Sho vol.5
15, 1,659 *11,516 Kuroshitsuji vol.9
16, 1,517 *10,024 Fullmetal Alchemist: Brotherhood vol.2 DVD
17, 1,478 **1,478 Asura Cryin' vol.4 Limited Edition
18, 1,459 *23,490 Hetalia Axis Powers vol.4 Limited Edition
19, 1,453 **3,630 07-Ghost vol.3 Limited Edition
20, 1,441 **1,441 Kanamemo vol.1 Limited Edition
21, 1,101 951,568 My Neighbor Totoro
22, *,988 **6,573 Black★Rock Shooter Pilot Edition
23, *,939 *18,678 The Melancholy of Haruhi Suzumiya (2009) Endless Eight I&II Limited Edition
24, *,866 ***,866 Stitch! BOX vol.2
25, *,816 ***,816 Skip Beat! vol.9

Blu-ray
*1, 7,879 37,251 Bakemonogatari vol.1 Limited Edition
*2, 3,348 *3,348 Spice and Wolf II vol.1
*3, 1,373 *1,373 Taishou Yakyuu Musume. vol.1 Limited Edition
*4, *,552 *6,245 Black★Rock Shooter Pilot Edition
*5, *,513 *4,731 Fullmetal Alchemist: Brotherhood vol.2
*6, *,491 31,826 K-ON! vol.3
*7, *.483 **,483 Basquash! vol.2
*8, *,468 93,705 Evangelion: 1.11 You Are (Not) Alone
*9, *,408 *4,373 Darker than BLACK - Kuro no Keiyakusha Blu-ray Box
10, *,290 *4,044 Higashi no Eden vol.3
11, *,264 **,720 Vexille - 2077 Nihon Sakoku