@Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        Catalogue other = (Catalogue) obj;
        if (myGenres == null) {
            if (other.myGenres != null)
                return false;
        } else if (!myGenres.equals(other.myGenres))
            return false;
        return true;
    }