[Playlist] clipping

[Lucas Gonze]

Bjorn Wijers wrote:
> Perhaps we should think about how to create an easy to access 
> repository for future extensions in order to make it as easy as possible 
> for developers to incorporate certain features using extensions in their 
> software without extending the core specs. This way the core spec 
> functionality can be 'frozen' and new functionality can thrive with or 
> without the consent of this group...

Y'know, maybe we can make this approach work.  If there were extensions 
that we really emphasized they might reach critical mass.