The article also reports that the release will be followed by four monthly consecutive releases, making it a total of 5 DVDs.
Unfortunately, there is no mention so far of any CLAMP goodies (such as booklets featuring original character sketches or a drawn Box).
There are plans for a Blu-Ray Box release in April, 2009.
With only 5 DVDs, I wonder how many episodes Mouryou no Hako will have. Maybe only 13?
Speaking of DVDs and anime with character design by CLAMP, Bandai Visual announced that the Code Geass series broke the million mark of DVDs and Blu-Ray discs sold.
In the official press release, Bandai Visual credits such success thanks to the anime popularity and the many extras that came with the DVDs and Blu-Ray discs, including the Box drawn by CLAMP.
Congratulations to Code Geass!