The Best Buy-owned CinemaNow is flashing a Disc to Digital beta page that offers downloads of a player for Windows or Mac PCs that not only allows access to one's UltraViolet library both online or offline, but also insert any DVD (no word on Blu-ray support yet) and convert it to an SD or HD UltraViolet copy.
It supports duplex printing (automatically printing on both sides without having to manually re-insert the paper) and unlike some other printers, there is no separate attachment for duplex.