The plug-in from DAZ is for Bryce 5 to read obj and mtl files that have been exported from DAZ Studio. It has nothing to do with exporting from Bryce. If the original poster was referring to the 'Bryce obj' that you export from Studio, I doubt if the plug-in will work with Bryce 4. The obj file isn't the issue anyway, it's the mtl file that is different, if I understand it correctly. TC