Meta Box on Custom Post Types

Hi there,

Love your plugin!!

I was wondering if there was a way to add the meta box to custom post type edit screens, not just ‘post’ and ‘page’ edit screens. I know I can do this by editing the plugin file itself and adding the following:

add_meta_box(
‘pbwp_shortcode_metabox’,
__(‘HTML5 Audio – Generator’, ‘PBoEmbedHTML5Audio’),
array(&$this, ‘pbwp_shortcode_metabox’),
‘music-library’
);

But, of course, I don’t want to edit the plugin file itself!

Any ideas?

Thank you!

http://wordpress.org/plugins/pb-oembed-html5-audio-with-cache-support/