Do I need to do more than make a Custom File Info Panel

Question

I downloaded the spec for XMP Custom Panels and have it partially working in Photoshop CS--see the code below.<br /><br />The problem is with namespaces.  I want to put my info into a danser namespace in JPEGs. <br />1. The code below partially works in PS-CS but it puts the "Title" into dc:title and the "Season" into xap:Season<br />2. If I add xmp_namespace: danser  to the edit_text then the panel fails to load in PS-CS.<br />3. I'm not clear on the purpose of the Metadata templates in Photoshops "File Info" Advanced tab.   Do I need to make a template there? How? --or point me to instructions.  (I made one but it didn't help.)<br /><br /><?xml version="1.0"><br /><!DOCTYPE panel SYSTEM "http://ns.adobe.com/custompanels/1.0"><br /><panel title="$$$/DISC/PanelName=danser" version="1" type="custom_panel"><br />group(placement: place_column, spacing: gSpace, horizontal: align_fill, vertical: align_top)<br />     {<br />     static_text(name: '$$$/danser/Title1=Title:', horizontal: align_left);<br />     edit_text(horizontal: align_fill, xmp_path: 'Title', vertical: align_top);<br />          <br />     static_text(name: '$$$/danser/Title1=Season:', vertical: align_left);<br />     edit_text(horizontal: align_fill, xmp_path: 'Season', vertical: align_top);<br />     }<br /></panel>

Answer 1

I found the problem and also an easier way to do create Custom info panels.
The docs don't mention that you have to use an "xmp_ns_prefix" along with an "xmp_namespace". I found this parameter in the code generated by the free MetaLab application from poundhill.com
For example, the first editText line in my earlier post should be:
edit_text(horizontal: align_fill, xmp_ns_prefix: 'danser', xmp_namespace: 'http://ns.danser.com/danser/1/', xmp_path: 'Title', vertical: align_top);
MetaLab makes this process a lot easier. Do the rough work in it and then hand tweak the code to specify things like field height.
Once I made that change, everything worked--there's no need (for this purpose) to load XMP or templates in the advanced tab).