Slightly bigger than DIN A6, B6 is the format mostly used by our customers. It has the maximum heights for postcard postage in Germany and weighs less than 17g including the disc. It is certified for only postcard postage.
It holds an 8cm-CD or DVD as well. Size: 125mm x 176 mm.
The oversized DIN B6 XL is 125 x 235 mm, which is the largest possible postcard dimension.
The template for designing the M4-Card® in this format can be found here: M4-Card Layout DIN B6