--- a/ttml1/spec/ttml1.xml	Mon Aug 26 19:27:57 2013 -0600
+++ b/ttml1/spec/ttml1.xml	Mon Aug 26 19:43:12 2013 -0600
@@ -8725,7 +8725,8 @@
 <label>Encoding considerations:</label>
 <def>
 <p>Same for application/xml, except constrained to either UTF-8 or UTF-16. See <bibref ref="xml-media"/>
-(http://www.rfc-editor.org/rfc/rfc3023.txt), Section 3.2.</p>
+(http://www.rfc-editor.org/rfc/rfc3023.txt), Section 3.2.
+For the purpose of filling out the IANA Application for Media Type (http://www.iana.org/cgi-bin/mediatypes.pl), the value <emph>binary</emph> applies.</p>
 </def>
 </gitem>
 <gitem>