(1) change 'four' to 'three' under 6.1.1 in reference to number of profile definition documents; (2) change 'metrics' to 'units' in note in 8.2.9;
--- a/ttml10/spec/ttaf1-dfxp.xml Wed Mar 07 22:50:04 2012 -0700
+++ b/ttml10/spec/ttaf1-dfxp.xml Thu Mar 08 08:52:04 2012 -0700
@@ -1632,7 +1632,7 @@
<p>When a <el>tt:profile</el> element is used by a TTML
Profile Definition document instance, it serves to publish a machine
readable specification of a specific TTML content profile, of which
-this specification defines four such Profile Definition Documents in
+this specification defines three such Profile Definition Documents in
<specref ref="profiles"/>.</p>
<p>The <el>ttp:profile</el> element accepts as its children zero or more
elements in the <code>Metadata.class</code> element group, followed by
@@ -4051,7 +4051,7 @@
scaling and the second expresses vertical scaling.</p>
<note role="example">
<p>Use of independent horizontal and vertical font sizes is expected to be used
-with cell based metrics in order to denote fonts that are two rows in height and
+with cell based units in order to denote fonts that are two rows in height and
one column in width.</p>
</note>
<p>If horizontal and vertical sizes are expressed independently, then the