Thanks for the fast reply,
so, as a future request, it would be really nice, to have a stand alone media-server service or, if this is not possible, a command line switch. (e.g. No-X) which prevents MC to call the X-server an run simply in the background. I installed mc on the NAS, it starts up to the point when the x-server gets into the game.
The reason for my request is: in order to use any remote player, you have to have mc running somewhere in your network besides the NAS. It would make more than sense to have a service running on your NAS. As a side effect, it will cut down your electricity bill a lot.
Udo