Amazon offers Prime members the Samsung USB External DVD Burner, model no. SE-218CB/RSBS, for $25.99 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $8.54.) That's the lowest total price we could find by $5. It writes DVD+/-R and DVD+RW media at 8x, DVD-RW media at 6x, and CD-R media at 24x.