Here is the Anime DVD sales rankings for March 30th - April 5th.

*1, 15,487 15,487 Clannad ~After Story~ vol.5 Limited Edition
*2, *5,069 *5,069 Koihime†Musou OVA Limited Edition
*3, **,*** **,*** Code Geass - Hangyaku no Lelouch R2 vol.8 *second week
*4, **,*** **,*** Mobile Suit Gundam 00 Second Season vol.2 *second week
*5, **,*** **,*** La Maison en Petits Cubes
*6, **,*** **,*** Macross Frontier vol.8 *second week
*7, **,*** **,*** Kuroshitsuji vol.3 Limited Edition *second week
*8, **,*** **,*** One Piece 9th Season vol.16
*9, **,*** **,*** Junjo Romantica 2 vol.3 Limited Edition
10, **,*** **,*** Hakushaku to Yousei vol.4
11, **,*** **,*** Gintama Season 3 vol.8 Limited Edition
12, **,*** **,*** Tales of the Abyss vol.2
13, **,*** **,*** Chrome Shelled Regios vol.1 Limited Edition
14, **,*** **,*** Toradora! vol.3 Limited Edition
15, **,*** **,*** The Sky Crawlers
16, **,*** **,*** To-LOVE-Ru vol.9 Limited Edition
17, **,*** **,*** Kannagi vol.5 Limited Edition

Source: Oricon Anime DVD ranking
Source: Oricon YouTaiju Service

Ref. The complete data for Mar 23 - 29
*1, 18,756 18,756 Code Geass - Hangyaku no Lelouch R2 vol.8 *without Blu-ray
*2, 17,049 17,049 Mobile Suit Gundam 00 Second Season vol.2 *without Blu-ray
*3, 13,655 13,655 Macross Frontier vol.8 *without Blu-ray
*4, 13.432 13,432 Gintama Season 3 vol.8 Limited Edition
*5, 10,706 10,706 Kuroshitsuji vol.3 Limited Edition
*6, *9,348 *9,348 Toradora! vol.3 Limited Edition
*7, *8,537 *8,537 Kannagi vol.5 Limited Edition
*8, *7,494 *7,494 Hidamari Sketch x 365 vol.7 Limited Edition
*9, *7,019 *7,019 Aria the Animation DVD-BOX
10, *6,736 *6,736 Sekirei vol.6 Limited Edition
11, *5,616 *5,616 Junjo Romantica 2 vol.3 Limited Edition
12, *5,370 *5,370 Tales of the Abyss vol.2 *without Blu-ray
13, *5,246 *5,246 To Aru Majutsu no Index vol.3 Limited Edition *without Blu-ray
14, *5,211 *5,211 To-LOVE-Ru vol.9
15, *4,876 38,611 La Maison en Petits Cubes
16, *4,612 *4,612 Ichigo Mashimaro encore vol.2 Limited Edition
17, *4,548 *4,548 Maria†Holic vol.1
18, *4,383 *4,383 Chrome Shelled Regios vol.1 Limited Edition
19, *4,330 *4,330 Zero no Tsukaima ~Princesses no Rondo~ vol.7
20, *4,053 *4,053 Bleach Shintaicho Amagai Shukusuke hen vol.5 Limited Edition
21, *4,009 *4,009 Higurashi no Naku Koro ni Rei vol.2 Collectors' Edition
22, *3,891 *3,891 Ga-Rei -Zero- vol.4 Limited Edition
23, *3,631 *3,631 Nodame Cantabile Paris Chapter vol.4
24, *3,513 *3,513 Naruto DVD-BOX vol.3
25, *3,481 *3,481 Tentai Senshi Sunred vol.2
26, *3,298 *3,298 Kurogane no Linebarrels vol.4
27, *3,243 *3,243 Tentai Senshi Sunred vol.3
28, *3,213 *3,213 Rosario + Vampire Capu2 vol.4
29, *3,190 *3,190 Eureka Seven DVD-BOX
30, *3,145 *3,145 Slayers Evolution-R vol.1
31, *2,903 *2,903 Soul Eater vol.8
32, *2,801 *2,801 Maria-sama ga Miteru 4th vol.1 Collectors' Edition
33, *2,608 *2,608 Akane-iro ni Somaru Saka vol.4 Limited Edition
34, *2,333 *2,333 Zettai Karen Children vol.8
35, *2,244 *2,244 Chi's Sweet Home
36, *2,027 *2,027 Keroro Gunsou 5th Season vol.4