The fit is exactly the core of the type DVD, so with the smaller center, 17 mm. That is, they stick down the transparent part of the CD / DVD to the mitleren Cutting.
In the print images of the labels of the DVD image of the minimum core loss is significantly lower.
I like that better than the CD labels that sit on the recordable ring, which in this case a large ring neck, 40 mm have. In people-pictures where then missing a part of the head, ... that's not the whole point.
So I reach up to the better version. And with this one, I am quite satisfied. Format 117/17.