Here is the Anime DVD sales ranking for Jan 26 - Feb 22.

*1, 54,145 Kara no Kyoukai 5: Mujun Rasen Limited Edition
*2, 23,813 Mobile Suit Gundam 00 Second Season vol.1 *without BD
*3, 16,968 Code Geass - Hangyaku no Lelouch R2 vol.7 *without BD
*4, 16,300 Clannad ~After Story~ vol.3 Limited Edition
*5, 14,544 Fullmetal Alchemist DVD-BOX
*6, 14,273 Gintama Season 3 vol.6 Limited Edition
*7, 12,368 Macross Frontier vol.7 *without BD
*8, 11,910 Strike Witches vol.5 Limited Edition
*9, 10,040 Kannagi vol.3 Limited Edition
10, *8,578 Natsume Yuujinchou vol.4
11, *7,588 Hidamari Sketch x 365 vol.5 Limited Edition
12, *7,269 Sekirei vol.4 Limited Edition
13, *6,987 Kara no Kyoukai 5: Mujun Rasen Normal Edition
14, *6,250 Junjo Romantica 2 vol.1 Limited Edition
15, *6,237 Dragon Ball Z Movie 13: Wrath of the Dragon
16, *6,103 Usavich - Season 2
17, *5,906 Tales of the Abyss vol.1
18, *5,358 Dragon Ball Movie #14
19, *4,964 Seto no Hanayome OVA Gi Limited Edition
20, *4,500 Nogizaka Haruka no Himitsu vol.5 Limited Edition
21, *4,231 Bleach vol.3
22, *3,719 Rosario + Vampire Capu2 vol.2
23, *3,712 Koihime†Musou vol.5 Limited Edition
24, *3,623 Katekyo Hitman Reborn! Mirai Hen vol.5
25, *3,612 Naruto DVD-BOX
26, *3,595 Nodame Cantabile Paris Chapter vol.2
27, *3,490 Kodomo no Jikan Second Term vol.1
28, *3,313 Ga-Rei -Zero- vol.2 Limited Edition
29, *3,224 Tentai Senshi Sunred vol.1
30, *2,938 Slayers Revolution vol.5
31, *2,817 D.Gray-man 2nd Stage vol.12
33, *2,768 Persona -trinity soul- vol.10
34, *2,357 One Piece 9th Season vol.14
35, *2,180 Soukyuu no Fafner: Dead Aggressor DVD-BOX
36, *1,958 Rozen Maiden: Träumend DVD-BOX

Source: Oricon Anime DVD ranking
Source: Oricon YouTaiju Service *account required

Note:
The anime DVDs which were not released in the given period were excluded. The numbers of copies are the sales in the first week after the release, not the total sales during the whole month.
without BD indicates the title was released in DVD and Blu-ray formats simultaneously. The numbers of the BD sales are unknown.