ok i am makeing a terrain in blender i export it to med in many diff formats. All give me this error. I read that i should select all the vertex and merge i did still will not convert to terrain. And ideas??

I still have this problem.. As anyone ever made a terrain as a mesh is a 3rd party program and got it into med and changed it to terrain? If so how did you do this. I think its real sad how they let med go with more bugs then a crack house. but is there any convert or programs that i can use? dont say heigh map cause med sucks at terrain. Med just sucks but really bad at terrain. with its 50 cent magnet tool its just boatwear and needs a rebuild from ground up. But this is not about my hate for med but how to get this terrain working. Any info would help like max size or max face that i maybe over on or something.

You can use my tutorial. But he on Russian
http://3dgs.ru/forum/topic.php?forum=27&topic=13

Well i dont speak russain but did translate it to english. Thank you it is what i was looking for.