Lenovo offers its Lenovo DB65 Slim USB 2.0 External DVD Burner, model no. 888015471, for $49.99. Coupon code "USP1JU515471" drops it to $21.99. With free shipping, that's tied with our February mention and the lowest total price we've seen. (It's a current low by $6.) It's designed for IdeaPad laptops (but works with most) and includes DVD burning software. Deal ends June 4.