When you say "rights owner" what does this entail? I am having difficulty finding a TM for the term "playlister" at both ipo.gov.uk & uspto.gov.
Perhaps rights owner is not the right term - they have not registered it (I think I mentioned this) but they have traded using the name around the world for 5+ years. This gives them some "prior rights" and some protection (in certain territories), certainly from a similarly targeted business with the same name.
Anyway, I have also discovered they are potentially breaching someone else's trademark in some ways so they have to consider a number of changes.
Lets see if they bother doing anything about anything.
Charles.