a string player requires these changes..

DIDLLite.py

@@ -577,7 +577,7 @@ class StorageFolder(Container):
 class DIDLElement(Element):
 	def __init__(self):
 		super().__init__('DIDL-Lite', {})
-		self.attrib['xmlns'] = 'urn:schemas-upnp-org:metadata-1-0/DIDL-Lite'
+		self.attrib['xmlns'] = 'urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/'
 		self.attrib['xmlns:dc'] = 'http://purl.org/dc/elements/1.1/'
 		self.attrib['xmlns:upnp'] = 'urn:schemas-upnp-org:metadata-1-0/upnp'
 

root-device.xml

@@ -21,16 +21,16 @@
 <service>
 <serviceType>urn:schemas-upnp-org:service:ConnectionManager:1</serviceType>
 <serviceId>urn:upnp-org:serviceId:urn:schemas-upnp-org:service:ConnectionManager</serviceId>
-<SCPDURL>ConnectionManager/scpd.xml</SCPDURL>
-<controlURL>ConnectionManager/control</controlURL>
-<eventSubURL>ConnectionManager/event</eventSubURL>
+<SCPDURL>/ConnectionManager/scpd.xml</SCPDURL>
+<controlURL>/ConnectionManager/control</controlURL>
+<eventSubURL>/ConnectionManager/event</eventSubURL>
 </service>
 <service>
 <serviceType>urn:schemas-upnp-org:service:ContentDirectory:1</serviceType>
 <serviceId>urn:upnp-org:serviceId:urn:schemas-upnp-org:service:ContenDirectory</serviceId>
-<SCPDURL>ContentDirectory/scpd.xml</SCPDURL>
-<controlURL>ContentDirectory/control</controlURL>
-<eventSubURL>ContentDirectory/event</eventSubURL>
+<SCPDURL>/ContentDirectory/scpd.xml</SCPDURL>
+<controlURL>/ContentDirectory/control</controlURL>
+<eventSubURL>/ContentDirectory/event</eventSubURL>
 </service>
 </serviceList>
 <deviceList/>