--- a/608toVTT/608toVTT.html	Thu Nov 08 16:58:08 2012 +1100
+++ b/608toVTT/608toVTT.html	Thu Nov 08 19:24:40 2012 +1100
@@ -415,16 +415,24 @@
         </p>
 
         <p>
-          Within the Caption Screen, CEA-708 defines "Caption Windows" through which the caption text is rendered. For WebVTT we map CEA-708 "Caption Windows" to <a href="http://www.w3.org/community/texttracks/wiki/MultiCueBox">WebVTT Regions</a>. In CEA-708 there are at most 8 Caption Windows - in WebVTT we can define an unlimited number of regions.
+          Within the Caption Screen, CEA-708 defines "Caption Windows" through which the caption text is rendered. For WebVTT we map CEA-708 "Caption Windows" to <a href="http://www.w3.org/community/texttracks/wiki/MultiCueBox">WebVTT Regions</a>. It is also possible to use plain WebVTT cues, but those have limited functionality, e.g. don't allow you to style the Region (e.g. Window background colors), or position with anchor points and anchor location, or do roll-up.
+        </p>
+          
+        <p>
+          In CEA-708 there are at most 8 Caption Windows - in WebVTT we can define an unlimited number of Regions.
         </p>
 
         <p>
-          This is an example Region definition in WebVTT for a region with its bottom center anchored in the middle of the screen, 4 lines high and 100% wide:
+          This is an example Region definition in WebVTT for a Region with its bottom center anchored in the middle of the screen, 4 lines high and 100% wide:
         </p>
         <pre>
 Region: id=window1 width=100% height=4 regionanchor=50%,100% viewportanchor=50%,50% scroll=up
         </pre>
 
+        <p>
+           Note that Regions in WebVTT cannot be moved at this time, so if there is a need to move to a different on-screen location, it is best to define another Region for that and copy the caption text.
+        </p>
+
 
         <h3>Caption Window Priority</h3>
 
@@ -479,6 +487,7 @@
           Note that if two Regions end up being active at the same time (i.e. having cues at the same time) and being in the same "layer" and overlapping on the viewport, the one defined last overlaps the one defined earlier.
         </p>
 
+
         <h3>Caption Window Anchor Points</h3>
 
         <p>
@@ -553,6 +562,7 @@
 viewportanchor:x%,y%
         </pre>
 
+
         <h3>Caption Window size</h3>
 
         <p>
@@ -579,6 +589,7 @@
           The actual height and width of the caption window depends, however, on the actual font size. Thus, the width is calculated by multiplying the number of columns with the character width and the height by multiplying the number of rows with the character height.
         </p>
 
+
         <h3>Caption Window Row and Column Locking</h3>
 
         <p>