Hi, I'm new to paint dot net so please forgive any idiocy here. I've added your plugin (many thanks) and can now successfully open a Sony .arw file as I wanted to. It lets me edit and save the file, with an arw extension. But then if I try to open it again with paint it fails with an error? Should I be able to save in any raw format? Or only the file types in the drop down save menu?