One more point: Since the native Bryce formats are not published, they would likely be considered by Corel and/or MetaCreations as Trade Secrets and thus covered under the reverse engineering license. I imagine you'd have a quick visit by their lawyers if you created a program which could write to or read from those proprietary formats (.obp and .br4/.br3) and started charging for it. Of course, I'm by no means an expert in patent law. I'm not trying to shoot you down: I'm just not sure you're aware of the hurdles involved in importing animation into Bryce. I mean, both Bryce and Poser have been around for many years, and everyone's been crying for an animation import tool, but no one (including MetaCreations or Corel) has come up with one. -flick