Samsung’s announcement is really interesting, The company says that it will introduce this year a Blu-ray player that can take users’ existing DVDs and Blu-ray discs and upload them to an UltraViolet digital locker. That means people don’t have to wait for a movie to be released on a disc that includes UltraViolet streaming rights in order to watch their home videos on digital devices. The remote control for the Samsung player will have a dedicated button that says “Disc To Digital.” The announcement followed the long-awaited disclosure that Amazon has an UltraViolet agreement with a studio which it declined to name — but which I’m told is Warner Bros. The agreement means that when Amazon sells an UltraViolet-enabled disc from the mystery studio,  the retailer will also handle digital streams for the movie. Amazon and Samsung made their announcements at a 2012 International CES panel about UltraViolet.