playing with video

geo_app.md

@@ -26,7 +26,7 @@ Our research into digital geometry and appearance is method oriented and applica
 - Digital master: modelling the shape and appearance of a product before manufacturing with applications to quality assessment.
   
 <video width=640 height=360 controls>
-  <source src="video/VR_modelling.m4v" type="video/mp4">
+  <source src="video/VR_modelling.m4v" type="video/x-m4v">
   ![3D Modelling in VR](images/VR_modelling.png) 
 </video>