Next-generation home recording via high-capacity blue-laser DVD technology promises a little more freedom but also additional restrictions. Both Blu-ray and HD DVD discs (the two major blue-laser DVD formats) will carry a digital watermark that will let players identify illegally copied discs and prevent playback of the content. Backers of both Blu-ray and HD DVD formats have announced their support for “mandatory managed copies,” which will allow home users to make a single copy of their high-definition discs and share them across a home network – something that consumers can’t legally do with today’s commercial DVDs.