YAWN. The Bryce .OBP / .BR* binary file format for objects is as impenetrable as Area 51 and I have got nowhere with trying to decode it. It seems to be deliberately encrypted. I get the impression that Bryce objects can be exported as .OBJ IF they don't use any Bryce booleaning and they don't include Bryce-created cubes or cylinders or suchlike. In Bryce booleaning the meshes are not actually welded like e.g. Ray Dream Studio does, but they merely come with instructions not to render any part of mesh X which is inside / outside part Y and suchlike.