adding an album multiple times to a playlist in Kazoo

[simoncn]

It is most unfortunate that the UPnP standard doesn't include a specific action for a control point to ask the server to send the recursive contents of a container with duplicates eliminated.

This is presumably because the UPnP protocol was designed in the days when the server provided a fixed hierarchy and duplicates could not occur.

The control point could issue a Search operation instead of recursively browsing the container. MinimServer implements this very efficiently and automatically eliminates duplicates from the result. Unfortunately, not all servers implement Search because it is an optional part of the UPnP specification.