diff --git a/lang/ca/exescorm.php b/lang/ca/exescorm.php
index bf2ef11..2146d6e 100644
--- a/lang/ca/exescorm.php
+++ b/lang/ca/exescorm.php
@@ -24,6 +24,7 @@
 
 $string['toc'] = 'Taula de continguts';
 $string['navigation'] = 'Navegació';
+$string['contenttitle'] = 'Contingut';
 $string['aicchacptimeout'] = 'Temps d\'espera AICC HACP';
 $string['aicchacptimeout_desc'] = 'Període de temps en minuts que una sessió externa AICC HACP es mantindrà oberta';
 $string['aicchacpkeepsessiondata'] = 'Dades de sessió AICC HACP';
diff --git a/lang/en/exescorm.php b/lang/en/exescorm.php
index 6228984..a19c50f 100644
--- a/lang/en/exescorm.php
+++ b/lang/en/exescorm.php
@@ -23,6 +23,7 @@
  */
 $string['toc'] = 'TOC';
 $string['navigation'] = 'Navigation';
+$string['contenttitle'] = 'Content';
 $string['aicchacptimeout'] = 'AICC HACP timeout';
 $string['aicchacptimeout_desc'] = 'Length of time in minutes that an external AICC HACP session can remain open';
 $string['aicchacpkeepsessiondata'] = 'AICC HACP session data';
diff --git a/lang/es/exescorm.php b/lang/es/exescorm.php
index fbb776c..52030de 100644
--- a/lang/es/exescorm.php
+++ b/lang/es/exescorm.php
@@ -23,6 +23,7 @@
  */
 $string['toc'] = 'TOC (Tabla de Contenidos)';
 $string['navigation'] = 'Navegación';
+$string['contenttitle'] = 'Contenido';
 $string['aicchacptimeout'] = 'Tiempo de espera AICC HACP';
 $string['aicchacptimeout_desc'] = 'Periodo de tiempo en minutos en el que una sesión externa AICC HACP se mantendrá abierta';
 $string['aicchacpkeepsessiondata'] = 'Datos de sesión AICC HACP';
diff --git a/lang/eu/exescorm.php b/lang/eu/exescorm.php
index 7502910..586e815 100644
--- a/lang/eu/exescorm.php
+++ b/lang/eu/exescorm.php
@@ -23,6 +23,7 @@
  */
 $string['toc'] = 'TOC (Edukien Taula)';
 $string['navigation'] = 'Nabigazioa';
+$string['contenttitle'] = 'Edukia';
 $string['aicchacptimeout'] = 'AICC HACP itxaronaldia';
 $string['aicchacptimeout_desc'] = 'Zenbat minutuz egonen den irekia AICC HACP kanpoko saio bat';
 $string['aicchacpkeepsessiondata'] = 'AICC HACP saioaren datuak';
diff --git a/lang/gl/exescorm.php b/lang/gl/exescorm.php
index 9729399..f4daa2a 100644
--- a/lang/gl/exescorm.php
+++ b/lang/gl/exescorm.php
@@ -23,6 +23,7 @@
  */
 $string['toc'] = 'TOC (Táboa de Contidos)';
 $string['navigation'] = 'Navegación';
+$string['contenttitle'] = 'Contido';
 $string['aicchacptimeout'] = 'Tempo de espera AICC HACP';
 $string['aicchacptimeout_desc'] = 'Período de tempo en minutos no que unha sesión externa AICC HACP se manterá aberta';
 $string['aicchacpkeepsessiondata'] = 'Datos de sesión AICC HACP';
diff --git a/locallib.php b/locallib.php
index 7088093..bf582f3 100644
--- a/locallib.php
+++ b/locallib.php
@@ -1848,12 +1848,14 @@ function exescorm_format_toc_for_treeview($user, $exescorm, $scoes, $usertracks,
                 } else {
                     if (!empty($sco->launch)) {
                         if ($sco->exescormtype == 'sco') {
-                            $result->toc .= html_writer::tag('a', $sco->statusicon.' '.
-                                                                format_string($sco->title).' '.$score,
-                                                                array('data-scoid' => $sco->id, 'title' => $sco->url));
+                            $result->toc .= html_writer::tag('a', $sco->statusicon.
+                                                                format_string($sco->title).($score ? ' '.$score : ''),
+                                                                array('data-scoid' => $sco->id, 'title' => $sco->url,
+                                                                    'href' => '#'));
                         } else {
-                            $result->toc .= html_writer::tag('a', ' '.format_string($sco->title).' '.$score,
-                                                                array('data-scoid' => $sco->id, 'title' => $sco->url));
+                            $result->toc .= html_writer::tag('a', ' '.format_string($sco->title).($score ? ' '.$score : ''),
+                                                                array('data-scoid' => $sco->id, 'title' => $sco->url,
+                                                                    'href' => '#'));
                         }
                     } else {
                         if ($sco->exescormtype == 'sco') {
@@ -1960,7 +1962,11 @@ function exescorm_get_toc($user, $exescorm, $cmid, $toclink=EXESCORM_TOCJSLINK,
 
     if ($tocheader) {
         $result->toc = html_writer::start_div('yui3-g-r', array('id' => 'exescorm_layout'));
-        $result->toc .= html_writer::start_div('yui3-u-1-5 loading', array('id' => 'exescorm_toc'));
+        $result->toc .= html_writer::start_div('yui3-u-1-5 loading', array(
+            'id' => 'exescorm_toc',
+            'role' => 'navigation',
+            'aria-label' => get_string('contents', 'mod_exescorm'),
+        ));
         $result->toc .= html_writer::start_div('', ['id' => 'exescorm_tree']);
     }
 
@@ -2025,7 +2031,8 @@ function exescorm_get_toc($user, $exescorm, $cmid, $toclink=EXESCORM_TOCJSLINK,
         $result->toc .= html_writer::end_div().html_writer::end_div();
         $result->toc .= html_writer::start_div('loading', array('id' => 'exescorm_toc_toggle'));
         $result->toc .= html_writer::tag('button', '',
-                        array('id' => 'exescorm_toc_toggle_btn', 'class' => 'bg-primary')).html_writer::end_div();
+                        array('id' => 'exescorm_toc_toggle_btn', 'class' => 'bg-primary',
+                            'aria-expanded' => 'true', 'aria-controls' => 'exescorm_toc')).html_writer::end_div();
         $result->toc .= html_writer::start_div('', array('id' => 'exescorm_content'));
         $result->toc .= html_writer::div('', '', array('id' => 'exescorm_navpanel'));
         $result->toc .= html_writer::end_div().html_writer::end_div();
diff --git a/module.js b/module.js
index ab4389f..4266c72 100644
--- a/module.js
+++ b/module.js
@@ -179,6 +179,22 @@ M.mod_exescorm.init = function(Y, nav_display, navposition_left, navposition_top
                 exescorm_current_node.select();
             }
 
+            // Mark the active TOC link so screen readers can announce the current item.
+            Y.one('#exescorm_tree').all('a[aria-current]').each(function(a) {
+                a.removeAttribute('aria-current');
+                a.setAttribute('aria-selected', 'false');
+            });
+            if (node.id) {
+                var activeEl = Y.one('#' + node.id);
+                if (activeEl) {
+                    var activeLink = activeEl.one('a');
+                    if (activeLink) {
+                        activeLink.setAttribute('aria-current', 'page');
+                        activeLink.setAttribute('aria-selected', 'true');
+                    }
+                }
+            }
+
             exescorm_tree_node.closeAll();
             var url_prefix = M.cfg.wwwroot + '/mod/exescorm/loadSCO.php?';
             var el_old_api = document.getElementById('exescormapi123');
@@ -193,6 +209,10 @@ M.mod_exescorm.init = function(Y, nav_display, navposition_left, navposition_top
             obj.setAttribute('webkitallowfullscreen', 'webkitallowfullscreen');
             obj.setAttribute('mozallowfullscreen', 'mozallowfullscreen');
             obj.setAttribute('onload', "exescorm_iframe_onload(this)");
+            var labelEl = document.createElement('div');
+            labelEl.innerHTML = node.label || '';
+            var frameTitle = (labelEl.textContent || labelEl.innerText || '').replace(/\s+/g, ' ').trim().replace(/ \| [^|]*$/, '').replace(/["']/g, '');
+            obj.setAttribute('title', frameTitle || M.util.get_string('contenttitle', 'mod_exescorm'));
 
             if (!window_name && node.title != null) {
                 obj.setAttribute('src', url_prefix + node.title);
@@ -294,14 +314,16 @@ M.mod_exescorm.init = function(Y, nav_display, navposition_left, navposition_top
                     toc.addClass(cssclasses.disabled)
                         .setAttribute('disabled-by', 'screen-size');
                     exescorm_toc_toggle_btn.setHTML('>').addClass('collapsed').removeClass('uncollapsed')
-                        .set('title', M.util.get_string('show', 'moodle'));
+                        .set('title', M.util.get_string('show', 'moodle'))
+                        .setAttribute('aria-expanded', 'false');
                     exescorm_content.removeClass(cssclasses.exescorm_grid_content_toc_visible)
                         .addClass(cssclasses.exescorm_grid_content_toc_hidden);
                 } else if (body.get('winWidth') > collapsetocwinsize) {
                     toc.removeClass(cssclasses.disabled)
                         .removeAttribute('disabled-by');
                     exescorm_toc_toggle_btn.setHTML('<').addClass('uncollapsed').removeClass('collapsed')
-                        .set('title', M.util.get_string('hide', 'moodle'));
+                        .set('title', M.util.get_string('hide', 'moodle'))
+                        .setAttribute('aria-expanded', 'true');
                     exescorm_content.removeClass(cssclasses.exescorm_grid_content_toc_hidden)
                         .addClass(cssclasses.exescorm_grid_content_toc_visible);
                 }
@@ -311,14 +333,16 @@ M.mod_exescorm.init = function(Y, nav_display, navposition_left, navposition_top
                 toc.removeClass(cssclasses.disabled)
                     .removeAttribute('disabled-by');
                 exescorm_toc_toggle_btn.setHTML('<').addClass('uncollapsed').removeClass('collapsed')
-                    .set('title', M.util.get_string('hide', 'moodle'));
+                    .set('title', M.util.get_string('hide', 'moodle'))
+                    .setAttribute('aria-expanded', 'true');
                 exescorm_content.removeClass(cssclasses.exescorm_grid_content_toc_hidden)
                     .addClass(cssclasses.exescorm_grid_content_toc_visible);
             } else {
                 toc.addClass(cssclasses.disabled)
                     .setAttribute('disabled-by', 'user');
                 exescorm_toc_toggle_btn.setHTML('>').addClass('collapsed').removeClass('uncollapsed')
-                    .set('title', M.util.get_string('show', 'moodle'));
+                    .set('title', M.util.get_string('show', 'moodle'))
+                    .setAttribute('aria-expanded', 'false');
                 exescorm_content.removeClass(cssclasses.exescorm_grid_content_toc_visible)
                     .addClass(cssclasses.exescorm_grid_content_toc_hidden);
             }
@@ -621,7 +645,8 @@ M.mod_exescorm.init = function(Y, nav_display, navposition_left, navposition_top
             Y.one('#exescorm_toc_toggle').addClass(cssclasses.exescorm_grid_toggle);
             Y.one('#exescorm_toc_toggle_btn')
                 .setHTML('<')
-                .setAttribute('title', M.util.get_string('hide', 'moodle'));
+                .setAttribute('title', M.util.get_string('hide', 'moodle'))
+                .setAttribute('aria-expanded', 'true');
             Y.one('#exescorm_content').addClass(cssclasses.exescorm_grid_content_toc_visible);
             exescorm_toggle_toc(true);
         }
@@ -632,7 +657,8 @@ M.mod_exescorm.init = function(Y, nav_display, navposition_left, navposition_top
                 Y.one('#exescorm_toc').addClass(cssclasses.disabled);
                 Y.one('#exescorm_toc_toggle_btn')
                     .setHTML('>')
-                    .setAttribute('title', M.util.get_string('show', 'moodle'));
+                    .setAttribute('title', M.util.get_string('show', 'moodle'))
+                    .setAttribute('aria-expanded', 'false');
                 Y.one('#exescorm_content')
                     .removeClass(cssclasses.exescorm_grid_content_toc_visible)
                     .addClass(cssclasses.exescorm_grid_content_toc_hidden);
@@ -707,6 +733,11 @@ M.mod_exescorm.init = function(Y, nav_display, navposition_left, navposition_top
         tree.render();
         tree.openAll();
 
+        // Prevent href="#" on TOC anchors from scrolling to page top.
+        Y.one('#exescorm_tree').delegate('click', function(e) {
+            e.preventDefault();
+        }, 'a');
+
         // On getting the window, always set the focus on the current item
         Y.one(Y.config.win).on('focus', function (e) {
             var current = exescorm_tree_node.getSelectedNodes()[0];
diff --git a/player.php b/player.php
index 7e1ae1f..08d10d8 100644
--- a/player.php
+++ b/player.php
@@ -218,6 +218,7 @@
 $PAGE->requires->string_for_js('hide', 'moodle');
 $PAGE->requires->string_for_js('show', 'moodle');
 $PAGE->requires->string_for_js('popupsblocked', 'mod_exescorm');
+$PAGE->requires->string_for_js('contenttitle', 'mod_exescorm');
 
 $name = false;
 
diff --git a/styles.css b/styles.css
index c7818ca..252d659 100644
--- a/styles.css
+++ b/styles.css
@@ -79,6 +79,14 @@
     font-size: 0.8em;
 }
 
+#page-mod-exescorm-player #tocbox li a i{
+    margin-right: .5em
+}
+
+#page-mod-exescorm-player #tocbox a[aria-current]{
+    text-decoration: underline;
+}
+
 #page-mod-exescorm-player #toctree {
     overflow: visible;
 }