I think something similar was posted awhile ago, but since I know old-topic-posting is generally verboten, I'll make another one here.
Anyhow, I think something very useful for ImgBurn would be an Add select files to image file..., at which point, we would get to choose what to do with that image file. I myself is more saving them than burning them, so hopefully a process can be created to speed that up.
I recall in the previous thread I read, there was a Registry settings section where one could add this functionality. I checked it, and every check box is checked. I believe that was for the Open with... option, which does not appear for all files, namely .exe files.