And one more general question: I know from my Q10 4k3D that a additional WRAPPER is needede to use the Himedia Player when playing from Kodi.
Is such a Wrapper not needed for the H8? And Why?? What is the difference between the Q10 and the H8 related to the Wrapper??
The custom version of Kodi pre-installed on H8 does kind of use a wrapper, but it's so tightly integrated into Kodi that you don't notice. So the 'wrapper', which is using Rockchip code to play media, plays media in the background with the full Kodi GUI on top. It's seamless and is, in effect, the same as using Kodi's internal player.
Q10/Q5 launch an external player from Kodi so you lose the Kodi GUI whilst playing files.
The H8 solution is better. More elegant.
The Q5/Q10 solution has the advantage that the wrapper can be applied to any version of Kodi, so there's no waiting for firmware updates to get latest version of Kodi.