I am using podpress to provide my video/audio out to itunes. I use a different player for both mp3 and videos on the site itself.
I have disabled this by adding the following on line 727 in the podpress.php code (within the podpress_print_js_vars() function)
if ($podPress->settings['contentPlayer'] == 'disabled') return;
This works, but I am not sure if it impacts anything else (i doubt it)