What their official page does not say, but is a well-known fact among german underground bands, is that NB turned out to be just another record label. They do anti-mp3 and anti-copying propaganda and, even worse, they treat newcomers like shit.
A friend of mine, just for the fun of it, sent a brand-new, blank tape to NB, claiming it being the brand-new demo tape of his band. The reply was a form letter saying something like:

We appreciate your music and think your band's quite good, but your need some more perfection before we can give you a record deal. Please send us another demo at a later point.

They didn't even listen to the tape!