Index: libhb/muxmp4.c
===================================================================
--- libhb/muxmp4.c	(revision 1258)
+++ libhb/muxmp4.c	(working copy)
@@ -231,7 +231,17 @@
             return 0;
         }
     }
-
+    
+    /* apple the anamorphic pixel aspect if needed */
+    if( job->pixel_ratio )
+    {
+        float width, height;
+        width = job->pixel_aspect_width;
+        height = job->pixel_aspect_height;
+        
+        MP4AddPixelAspectRatio(m->file, mux_data->track, (uint32_t)width, (uint32_t)height);
+    }
+    
 	/* apply the anamorphic transformation matrix if needed */
 
 	if( job->pixel_ratio ) {