OK, I see. That's a pity, but I guess there is always something

Thank you very much for your quick response!

No, the DLNA standard doesn't support tagging files. It is a pure playback thing.

I set up a DLNA server on my main computer which works fine. I can access and play the music from my laptop. There is one thing left that I would like to do, but which does not work:
When I rate songs on my remote machine (laptop) the rating on the server does not change.

Is there a way to accomplish this?

Thank you