3dmf import is still in there on the mac in Bryce5. The hidden mesh export feature is on both platforms and its been there since Bryce3 - Select the mesh cmd/ctrl E to edit it and then cmd/ctrl D brings up the hidden export option that lets you save the mesh in a whole bunch of different export formats. I'm curious - do you get an error on Windows when you try to import it or does it just plain not SEE the file? I know even old versions of Amapi that can do it too if you have that software. Scott