UltraViolet is no joke. The fledgling digital format now boasts more than 3 million registered users and 6,000 titles, according to DECE president Mitch Singer who spoke with industry publication Home Media Magazine. UltraViolet first launched in October, 2011 offering the movies Horrible Bosses and Green Lantern as digital copies stored in the cloud. But the format’s true test came in November when Harry Potter and the Deathly Hallows Part 2 on Blu-ray Disc included access to an UltraViolet copy. But early adapters were critical of the new digital format which often had issues with registering new users and entering access codes. Since then, the process of registering new UltraViolet copies has become more streamlined and users are recognizing the benefits of storing digital copies in the cloud. From April to May, UltraViolet added 1 million more users mainly due to the launch of Walmart’s Disc-to-Digital in-store service powered by VUDU.