The reason for sidecar files is that I am concerned that after having 3,000 or so different keywords, NX2 will start slowing down, as it loads all of the keywords ever used every time it starts.
Also, my catalog program, IMatch, seems to do better with sidecar files.
I see your point and the advantage of staying away from the sidecar files with NX2 and nef files. However, my workflow is to embed once, maybe even with Nikon transfer, then never go back during editing, etc.
You said that it could be done but did not say how. Out of curiosity, would you mind sharing?
Thanks, Tom