Problems with Panasonic DVD-Player

A DVD which I made with DVDStyler/DVDAuthor does not run on a Panasonic 
DVD/Blueray Player.
The startmenu is displayed, you can push any button nothing happens, 
there's no action, no navigation.
On other hardware or software the DVD is played without any problems.
Video format is: PAL 720x576 16:9
  The menus are static,  I used the DVDStyler default settings:
     Frame count of menu: 12
     Draw buttons on background: on
Has someone any experience what do ?

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