public boolean equals(Object other) {
		Item o = (Item) other;
		return this.getAuthor().equals(o.getAuthor())
				&& this.getTitle().equals(o.getTitle()) 
						&& this.getGenre().equals(o.getGenre())
						&& this.getRating() == o.getRating()
						&& this.getLength() == o.getLength();
	}