}
a->add_child("Id")->add_child_text ("urn:uuid:" + _id);
a->add_child("AnnotationText")->add_child_text (_annotation_text);
- a->add_child("EditRate")->add_child_text (String::compose ("%1 %2", _edit_rate.numerator, _edit_rate.denominator));
+ a->add_child("EditRate")->add_child_text (_edit_rate.as_string());
a->add_child("IntrinsicDuration")->add_child_text (raw_convert<string> (_intrinsic_duration));
if (_entry_point) {
a->add_child("EntryPoint")->add_child_text(raw_convert<string>(*_entry_point));