Yes that's right, toolman. Since the *.tre file does not contain the geometry it could be traded with other OnyxTree or OnyxTreePro users. Without one of the above software the *.tre file is useless. I remember having this discussion before. It's a bit more than a year ago when the owner of 3dforest.com was prosecuted because he sold CD's full with converted and ready textured trees he made with TreePro. I don't know if he knew that this was illegal or not but I know in front of the judge it does not count as an argument. I really wish Onyx would lower the price for their software so every one of you could afford it and benefit from the possibility to complete your Bryce Landscapes with realistic vegetation. EH