You will probably need a drive with an RPC1 firmware.
Also, Kodi is not a great solution for DVD playback, especially on RPi (issues with menus, etc). Any standalone player will do a much better job.
Just to translate it for other readers: RPC1 means region free playback (all DVD region codes playable).
Using libdvdcss could be the reason for DVD menu issues. I have seen those issues with VLC on PC too, which uses libdvdcss.
So, understanding what LibreELEC does with DVD's is really important here.