RESULT play(const eServiceReference &, iPlayableServicePtr &ptr);
RESULT record(const eServiceReference &, iRecordableServicePtr &ptr);
RESULT list(const eServiceReference &, iListableServicePtr &ptr);
RESULT play(const eServiceReference &, iPlayableServicePtr &ptr);
RESULT record(const eServiceReference &, iRecordableServicePtr &ptr);
RESULT list(const eServiceReference &, iListableServicePtr &ptr);