Index: wp-admin/includes/media.php
===================================================================
--- wp-admin/includes/media.php	(revision 24826)
+++ wp-admin/includes/media.php	(working copy)
@@ -444,7 +444,7 @@
 
 	$img = '<span class="wp-media-buttons-icon"></span> ';
 
-	echo '<a href="#" id="insert-media-button" class="button insert-media add_media" data-editor="' . esc_attr( $editor_id ) . '" title="' . esc_attr__( 'Add Media' ) . '">' . $img . __( 'Add Media' ) . '</a>';
+	echo '<a href="#" id="insert-media-button" class="button insert-media add_media" data-editor="' . esc_attr( $editor_id ) . '" title="' . esc_attr__( 'Insert Media' ) . '">' . $img . __( 'Insert Media' ) . '</a>';
 
 	// Don't use this filter. Want to add a button? Use the media_buttons action.
 	$legacy_filter = apply_filters('media_buttons_context', ''); // deprecated
Index: wp-admin/edit-form-advanced.php
===================================================================
--- wp-admin/edit-form-advanced.php	(revision 24826)
+++ wp-admin/edit-form-advanced.php	(working copy)
@@ -257,7 +257,7 @@
 }
 
 if ( 'post' == $post_type || 'page' == $post_type ) {
-	$inserting_media = '<p>' . __( 'You can upload and insert media (images, audio, documents, etc.) by clicking the Add Media button. You can select from the images and files already uploaded to the Media Library, or upload new media to add to your page or post. To create an image gallery, select the images to add and click the &#8220;Create a new gallery&#8221; button.' ) . '</p>';
+	$inserting_media = '<p>' . __( 'You can upload and insert media (images, audio, documents, etc.) by clicking the Insert Media button. You can select from the images and files already uploaded to the Media Library, or upload new media to add to your page or post. To create an image gallery, select the images to add and click the &#8220;Create a new gallery&#8221; button.' ) . '</p>';
 	$inserting_media .= '<p>' . __( 'You can also embed media from many popular websites including Twitter, YouTube, Flickr and others by pasting the media URL on its own line into the content of your post/page. Please refer to the Codex to <a href="http://codex.wordpress.org/Embeds">learn more about embeds</a>.' ) . '</p>';
 
 	get_current_screen()->add_help_tab( array(