diff --git a/render.py b/render.py
index 9045ecc..1452501 100644
--- a/render.py
+++ b/render.py
@@ -118,14 +118,6 @@ def compose(clips, fragment, target=150, base=1024, voice_over=None, options=Non
     clips = selected_clips
     clip = None
     while target - length > 0 and clips:
-        '''
-        if clip:
-            if chance(seq, 0.5):
-                next_seqid = clip['seqid'] + 1
-                clip = get_clip_by_seqid(clips, next_seqid)
-            else:
-                clip = None
-        '''
         clip = None
         if not clip:
             # FIXME: while not all clips have AI versions make sure we have one 50% of the time
@@ -161,7 +153,7 @@ def compose(clips, fragment, target=150, base=1024, voice_over=None, options=Non
             }
         })
 
-        volume_front = '-17'
+        volume_front = '-15'
         if clip.get('volume') is not None:
             volume_front = '%0.2f' % (float(volume_front) + clip['volume'])
 
@@ -271,9 +263,9 @@ def compose(clips, fragment, target=150, base=1024, voice_over=None, options=Non
             print('%07.3f-%07.3f %07.3f' % (sub_offset, sub_offset+vo["duration"], vo["duration"]), vo["src"].split('/')[-1])
             voice_overs.append(vo)
             voc = vo.copy()
-            a, b = '0', '0'
+            a, b = '5', '-1'
             if options.get('stereo_downmix'):
-                a, b = '0', '0'
+                a, b = '5', '-1'
             voc['filter'] = {'volume': a}
             scene['audio-center']['A1'].append(voc)
             vo_low = vo.copy()
@@ -458,7 +450,7 @@ def get_fragments(clips, voice_over, prefix):
                         print("FIXME", i)
                         continue
                     type_ = i.data['type'][0].lower()
-                    target = os.path.join(prefix, 'video', type_, i.data['title'] + ext)
+                    target = os.path.join(prefix, 'video', type_, "%s-%s%s" % (i.data['title'], i.public_id, ext))
                     sources.append(target)
             fragment['clips'] = []
             for clip in clips:
@@ -964,6 +956,9 @@ def generate_clips(options):
     not_yet = itemlist.models.List.objects.filter(name='Not yet').first()
     if not_yet:
         skip += [i.public_id for i in not_yet.get_items(not_yet.user).all()]
+    if skip:
+        skip = list(set(skip))
+        print("skipping %s clips" % len(skip))
     for i in item.models.Item.objects.filter(sort__type='source'):
         if i.public_id in skip:
             continue
@@ -997,7 +992,7 @@ def generate_clips(options):
                         ai_type = '%s-%s' % (type_[3:], n)
                         n += 1
                     type_ = 'ai:' + ai_type
-                target = os.path.join(prefix, 'video', type_, i.data['title'] + ext)
+                target = os.path.join(prefix, 'video', type_, "%s-%s%s" % (i.data['title'], i.public_id, ext))
                 if ai_type:
                     clip['ai'][ai_type] = target
                 if type_ == "source":
@@ -1030,22 +1025,6 @@ def generate_clips(options):
             if adjust_volume:
                 clip['volume'] = float(adjust_volume)
             clip['id'] = i.public_id
-            name = os.path.basename(source_target)
-            seqid = re.sub(r"Hotel Aporia_(\d+)", "S\\1_", name)
-            seqid = re.sub(r"Night March_(\d+)", "S\\1_", seqid)
-            seqid = re.sub(r"_(\d+)H_(\d+)", "_S\\1\\2_", seqid)
-            seqid = seqid.split('_')[:2]
-            seqid = [b[1:] if b[:1] in ('B', 'S') else '0' for b in seqid]
-            seqid[1] = resolve_roman(seqid[1])
-            seqid[1] = ''.join([b for b in seqid[1] if b.isdigit()])
-            if not seqid[1]:
-                seqid[1] = '0'
-            try:
-                clip['seqid'] = int(''.join(['%06d' % int(b) for b in seqid]))
-            except:
-                print(name, seqid, 'failed')
-                raise
-
             clips.append(clip)
 
     with open(os.path.join(prefix, 'clips.json'), 'w') as fd:
@@ -1066,7 +1045,7 @@ def generate_clips(options):
         source = vo.files.filter(selected=True)[0]
         src = source.data.path
         ext = src.split('.')[-1]
-        target = os.path.join(prefix, 'voice_over', fragment, '%s-%s.%s' % (type, variant, ext))
+        target = os.path.join(prefix, 'voice_over', fragment, '%s-%s-%s.%s' % (type, variant, vo.public_id, ext))
         os.makedirs(os.path.dirname(target), exist_ok=True)
         if os.path.islink(target):
             os.unlink(target)
@@ -1096,7 +1075,7 @@ def generate_clips(options):
         if ai:
             ai_source = ai.files.filter(selected=True)[0]
             ai_src = ai_source.data.path
-            ai_target = os.path.join(prefix, 'voice_video', fragment, '%s-%s.%s' % (type, variant, 'mp4'))
+            ai_target = os.path.join(prefix, 'voice_video', fragment, '%s-%s-%s.%s' % (type, variant, ai.public_id, 'mp4'))
             os.makedirs(os.path.dirname(ai_target), exist_ok=True)
             if os.path.islink(ai_target):
                 os.unlink(ai_target)
@@ -1219,6 +1198,8 @@ def fragment_statistics():
     not_yet = itemlist.models.List.objects.filter(name='Not yet').first()
     if not_yet:
         skip += [i.public_id for i in not_yet.get_items(not_yet.user).all()]
+    if skip:
+        skip = list(set(skip))
 
     for l in itemlist.models.List.objects.filter(status='featured').order_by('name'):
         if l.name.split(' ')[0].isdigit():