diff --git a/pandora/item/models.py b/pandora/item/models.py
index 4eafa25b..76902731 100644
--- a/pandora/item/models.py
+++ b/pandora/item/models.py
@@ -400,7 +400,7 @@ class Item(models.Model):
                     stream['baseUrl'] = '/%s' % self.itemId
                 else:
                     stream['baseUrl'] = os.path.dirname(s.video.url)
-                stream['profiles'] = sorted(list(set(map(lambda s: int(os.path.splitext(s['profile'])[0][:-1]), self.streams.all().values('profile')))))
+                stream['resolutions'] = sorted(list(set(map(lambda s: int(os.path.splitext(s['profile'])[0][:-1]), self.streams.all().values('profile')))))
                 stream['formats'] = list(set(map(lambda s: os.path.splitext(s['profile'])[1][1:], self.streams.all().values('profile'))))
         return stream
 
diff --git a/pandora/item/urls.py b/pandora/item/urls.py
index 6cc1484e..942a9e4a 100644
--- a/pandora/item/urls.py
+++ b/pandora/item/urls.py
@@ -6,7 +6,7 @@ from django.conf.urls.defaults import *
 
 urlpatterns = patterns("item.views",
     #frames
-    (r'^(?P<id>[A-Z0-9].+)/(?P<size>\d+)p(?P<position>[\d\.]+)\.jpg$', 'frame'),
+    (r'^(?P<id>[A-Z0-9].+)/(?P<size>\d+)p(?P<position>[\d\.]*)\.jpg$', 'frame'),
 
     #timelines
     (r'^(?P<id>[A-Z0-9].+)/timeline(?P<size>\d+)p(?P<position>\d+)\.png$', 'timeline'),
diff --git a/pandora/item/views.py b/pandora/item/views.py
index ab18014e..4d833b84 100644
--- a/pandora/item/views.py
+++ b/pandora/item/views.py
@@ -548,9 +548,15 @@ actions.register(getImdbId)
 '''
     media delivery
 '''
-def frame(request, id, position, size):
+def frame(request, id, size, position=None):
     item = get_object_or_404(models.Item, itemId=id)
-    position = float(position.replace(',', '.'))
+    if not position:
+        if item.poster_frame == -1 and item.sort.duration:
+            position = item.sort.duration/2
+        else:
+            position = item.poster_frame
+    else:
+        position = float(position.replace(',', '.'))
     frame = item.frame(position, int(size))
     if not frame:
         raise Http404