<p>When browsing for a playlist within the playlist import utility, the treeview control displays files as expandable by showing the plus <span class="error">[+]</span> button before each file item.</p>

<p>Pressing it does nothing, because it is only a file.</p>

<p>For file items this button should be hidden. It might be useful to show the button if it is an iso file or zip-archive etc, but only if the treeview would be able to navigate into this resource, otherwise it should be hidden for those files as well.</p>