In a move that could help counter the instant gratification valley that currently separates online shopping from heading to the local retailer, Amazon is pushing a "limited time offer" called Disc+ On Demand that pairs 300 or so of its movies with a free Amazon VOD copy. That digital version pops into the buyer's Video Library instantly after purchase and still has to play by all the usual video on-demand rules of 24 hr / 30 day windows, U.S. address, and is currently only available in standard-definition. Still, this combination of the digital and physical purchase worlds means the online giant has
