Bestbuy offers LG - 8x External USB Double-Layer DVD±RW/CD-RW Drive - Black for $17.99 (orig. $39.99) with free store pickup or $5.49 shipping.  Shipping is free on orders over $35.

Product Description:
Store and play files on disk with this portable LG external DVD writer. Its 8x DVD and 24x CD write speeds let you produce optical copies efficiently, and its silent play technology optimizes read speed while reducing noise. This slim LG external DVD writer supports M-DISC formats for high-quality data storage.