-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            raise ExtractorError(u'ERROR: unable to download video info webpage: %s' % compat_str(err))
-        if info is None: # Regular URL
-            try:
-                json_code_bytes = urlh.read()
-                json_code = json_code_bytes.decode('utf-8')
-            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                raise ExtractorError(u'Unable to read video info webpage: %s' % compat_str(err))
-
-            try:
-                json_data = json.loads(json_code)
-                if 'Post' in json_data:
-                    data = json_data['Post']
-                else:
-                    data = json_data
-
-                upload_date = datetime.datetime.strptime(data['datestamp'], '%m-%d-%y %H:%M%p').strftime('%Y%m%d')
-                video_url = data['media']['url']
-                umobj = re.match(self._URL_EXT, video_url)
-                if umobj is None:
-                    raise ValueError('Can not determine filename extension')
-                ext = umobj.group(1)
-
-                info = {
-                    'id': data['item_id'],
-                    'url': video_url,
-                    'uploader': data['display_name'],
-                    'upload_date': upload_date,
-                    'title': data['title'],
-                    'ext': ext,
-                    'format': data['media']['mimeType'],
-                    'thumbnail': data['thumbnailUrl'],
-                    'description': data['description'],
-                    'player_url': data['embedUrl'],
-                    'user_agent': 'iTunes/10.6.1',
-                }
-            except (ValueError,KeyError) as err:
-                raise ExtractorError(u'Unable to parse video information: %s' % repr(err))
-
-        return [info]
+                lang = role.rpartition('-')[-1].strip().lower()
+                langcode = LANGS.get(lang, lang)
+                subtitles[langcode] = url
+            elif media_type.startswith('video/'):
+                formats.append({
+                    'url': real_url,
+                    'format_id': role,
+                    'format_note': media_type,
+                    'vcodec': media_content.get(blip('vcodec')),
+                    'acodec': media_content.get(blip('acodec')),
+                    'filesize': media_content.get('filesize'),
+                    'width': int(media_content.get('width')),
+                    'height': int(media_content.get('height')),
+                })
+        self._sort_formats(formats)
+
+        # subtitles
+        video_subtitles = self.extract_subtitles(video_id, subtitles)
+        if self._downloader.params.get('listsubtitles', False):
+            self._list_available_subtitles(video_id, subtitles)
+            return
+
+        return {
+            'id': video_id,
+            'title': title,
+            'description': description,
+            'timestamp': timestamp,
+            'uploader': uploader,
+            'uploader_id': uploader_id,
+            'duration': duration,
+            'thumbnail': thumbnail,
+            'categories': categories,
+            'formats': formats,
+            'subtitles': video_subtitles,
+        }
+
+    def _download_subtitle_url(self, sub_lang, url):
+        # For some weird reason, blip.tv serves a video instead of subtitles
+        # when we request with a common UA
+        req = compat_urllib_request.Request(url)
+        req.add_header('Youtubedl-user-agent', 'youtube-dl')
+        return self._download_webpage(req, None, note=False)