--- a/ttml-ww-profiles/ttml-ww-profiles.html	Tue Jul 22 16:29:43 2014 +0200
+++ b/ttml-ww-profiles/ttml-ww-profiles.html	Mon Jul 28 15:51:29 2014 +0200
@@ -217,11 +217,11 @@
   </p>
   <h1 class="title p-name" id="title" property="dcterms:title">TTML Text and Image Profiles for Internet Media Subtitles and Captions 1.0</h1>
   
-  <h2 property="dcterms:issued" datatype="xsd:dateTime" content="2014-07-22T12:28:02.000Z" id="w3c-first-public-working-draft-22-july-2014"><abbr title="World Wide Web Consortium">W3C</abbr> First Public Working Draft <time class="dt-published" datetime="2014-07-22">22 July 2014</time></h2>
+  <h2 property="dcterms:issued" datatype="xsd:dateTime" content="2014-07-28T11:49:49.000Z" id="w3c-first-public-working-draft-28-july-2014"><abbr title="World Wide Web Consortium">W3C</abbr> First Public Working Draft <time class="dt-published" datetime="2014-07-28">28 July 2014</time></h2>
   <dl>
     
       <dt>This version:</dt>
-      <dd><a class="u-url" href="http://www.w3.org/TR/2014/WD-ttml-imsc1-20140722/">http://www.w3.org/TR/2014/WD-ttml-imsc1-20140722/</a></dd>
+      <dd><a class="u-url" href="http://www.w3.org/TR/2014/WD-ttml-imsc1-20140728/">http://www.w3.org/TR/2014/WD-ttml-imsc1-20140728/</a></dd>
       <dt>Latest published version:</dt>
       <dd><a href="http://www.w3.org/TR/ttml-imsc1/">http://www.w3.org/TR/ttml-imsc1/</a></dd>
     
@@ -564,9 +564,8 @@
 
       <p>Each intermediate synchronic document of the subtitle document is intended to be displayed on a specific frame and removed
       on a specific frame of the related video object.</p>
-
-      <p>A media time expression M <em class="rfc2119" title="SHALL">SHALL</em> correspond to the frame of the related video object with the presentation time that is the
-      closest to, but not less, than M.</p>
+	  
+	  <p>When mapping a media time expression M to a frame F of a related video object, e.g. for the purpose of rendering a subtitle document onto the related video object, a presentation processor <em class="rfc2119" title="SHALL">SHALL</em> map M to the frame F with the presentation time that is the closest to, but not less, than M.</p>
 			
       <aside class="example"><div class="example-title"><span>Example 1</span></div>
         A media time expression of 00:00:05.1 corresponds to frame ceiling(5.1 × ( 1000 / 1001 × 30) = 153 of a related video

--- a/ttml-ww-profiles/ttml-ww-profiles.source.html	Tue Jul 22 16:29:43 2014 +0200
+++ b/ttml-ww-profiles/ttml-ww-profiles.source.html	Mon Jul 28 15:51:29 2014 +0200
@@ -268,9 +268,8 @@
 
       <p>Each intermediate synchronic document of the subtitle document is intended to be displayed on a specific frame and removed
       on a specific frame of the related video object.</p>
-
-      <p>A media time expression M SHALL correspond to the frame of the related video object with the presentation time that is the
-      closest to, but not less, than M.</p>
+	  
+	  <p>When mapping a media time expression M to a frame F of a related video object, e.g. for the purpose of rendering a subtitle document onto the related video object, a presentation processor SHALL map M to the frame F with the presentation time that is the closest to, but not less, than M.</p>
 			
       <aside class="example">
         A media time expression of 00:00:05.1 corresponds to frame ceiling(5.1 × ( 1000 / 1001 × 30) = 153 of a related video