tubaguy50035

Put meta fields in attachment settings meta box.
Copy custom_attachment_fields.php_copy to custom_attachment_fields.php, alter the array to add the fields you want, profit.

Attachment Meta

Put meta fields in attachment settings meta box.

yoren

Yoren Chang

This plugin is made for:
<ul>
<li>Search through all fields in Media Library, including: ID, title, caption, alternative text and description.</li>
<li>Search Taxonomies for Media, include the name, slug and description fields.</li>
<li>Search media file name.</li>
<li>Use shortcode <code>[mse-search-form]</code> to insert a media search form in posts and template files. It will search for media by all fields mentioned above.</li>
</ul>

Media Search Enhanced

Search through all fields in Media Library.

Attachment Meta vs Media Search Enhanced