Can’t get separate actions for Play/Pause & Center buttons, Apple Remote

During Visualization, the Play/Pause and center buttons on my aluminum Apple Remote both do Play/Pause. I want the center button to bring up song info instead so I made the following change to <visualization> in a copy of customcontroller.AppleRemote.xml in my userdata folder.

Code:
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<       <button id="5">Pause</button>
---
>       <button id="5">Info</button>

id=”5″ is the center button. Now both buttons bring up song info. So I added a line

Code:
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>       <button id="12">PlayPause</button>

where id=”12″ is the Play/Pause button. I also tried Pause instead of PlayPause. In all cases both buttons do the same thing, bring up info.

I turned on the debug log and pressed a few of the buttons but nothing appears in the log.

Why do these buttons have the same behavior? How can I debug the problem?