The DVD contains member interviews done during the One Two Three promotions (which can be viewed on their Youtube channel), the cover making of, and bonus performances of Kaiketsu Positive A and My Way ~Joshikou no Hanamichi~ from the spring concert.
sources: here, and here
The only real complaint I have about the covers is Ayumi's placement on the regular, because it's so weird. After getting the 50th single, it changed how I view covers like the Limited where it's just face shots all lined up next to each other, because it actually looks REALLY nice in person. I was actually surprised at how much I liked it when I got it because the online picture made it look kind of shoddy.