@Override
	public final String toString() {
		String ret;
		if (this.title == null) {
			ret = "<title>";
		} else {
			ret = this.title;
		}
		ret += " ";
		if (this.duration == null) {
			ret += "<time>";
		} else {
			ret += this.duration;
		}
		ret += " ";
		if (this.n == null) {
			ret += "?";
		} else {
			ret += this.n;
		}
		ret += " parts ";
		if (this.path == null) {
			ret += "<path>";
		} else {
			ret += this.path.relativize(this.basePath);
		}
		ret += " " + this.partsName;
		return ret;
	}