^
I don't think it's 4th highest ever, it's just 1st week sales
and I think he just took the most recent ones' sales
highest selling 1st week Morning Musume. concert tour DVD / Blu-ray in a very long time
2007春 17,982 25,819 Yossie grad
2007秋 14,913 20,092
2008春 14,921 20,473
2008秋 11,521 14,981
2009春 10,450 14,037
2009秋 10,946 12,424 Koharu grad DVD
2010春 *9,894 12,029 - Morning Musume concert in Blu-ray format started 2010 Spring tour
2010秋 *9,595 11,550 Kamei, Jun, Lin grad DVD / Blu-ray
2011春 *8,160 *9,932
2011秋 *8,977 10,389 Takahashi grad DVD / Blu-ray
2012春 *7,775 *8,951 Niigaki, Aika grad DVD / Blu-ray
2012秋 *8,021 *8,945
2013春 *8,377 10,022 Tanaka grad DVD / Blu-ray
2013秋 *9,504 11,492
2014春 *7,205 *8,924 FC盤あり
2014秋 16,006 16,006 Sayumi grad concert DVD / Blu-ray
Oh and thanks for that radio show link, but 16 minutes is too long for me lol
It's already three months now since Sayu's break
I wonder when she's going to come back