Is there bonus material of Foo Fighters "Back and Forth Doc" only on Blu ray or both DVD and Blu ray?

I'm gonna buy Foo Fighters Doc Back and Forth on dvd, and I read that
there will be included over 35 minutes of bonus material and I was
wondering if it will be only on Blu ray because it has much more space
for it or both on normal DVD and Blu ray?
Blu ray is more expensive and I haven't any Blu ray player.