No exactly that is what is not working, you cannot just replace md_khmurabi_10.ttf with ae._almateen.ttf as the font is looking really strange for latin characters.
But I have maybe another idea. But I've to check it first. I'll maybe come back to you for testing it.
Thank you dhwz , we are waiting for that test ,as you know we are 22 countries and this the fifth language globaly and we wish that dreambox to have it working in subtitles .
regards for your effort.