Hi Alexito,

> But you said that MoI can export curves to 3DM and Bryce can Import 3DMF
>
> is it the same thing or is far from it ?

Nope, those are totally different.

3DM is the Rhino file format.

3DMF is the file format from the old Apple Macintosh Quick Draw 3D system (Wikipedia link), which was abandoned by Apple about 10 years ago so it is a very rarely used format in general.

- Michael