The largest U.S. retailer of consumer electronics is setting up its digital delivery service in partnership with CinemaNow, which has deals with the major movie studios.

The software making it possible to shop CinemaNow's video library will be included on all the Web-connected devices sold in Best Buy's more than 1,000 U.S. stores. That means consumers who buy flat-panel TVs, Blu-ray players, personal computers and mobile phones from Best Buy would be able to get downloads of videos the same day they are released on DVDs.

The alliance marks the latest step away from the DVD format. Consumers are getting more ways of finding home entertainment with just a few clicks instead of traveling to a video rental store or waiting for a disc to be delivered through the mail.

Apple, Amazon.com and DVD-by-mail pioneer Netflix all have been winning over consumers with their own digital delivery systems. Blockbuster also has a deal with CinemaNow that lets people rent movies over the Internet.

Netflix gave an indication of the growing popularity of new video-delivery methods in its earnings report last month. It said that 42% of its subscribers streamed at least 15 minutes of video through its Internet-viewing service during the last quarter, up from 22% at the same time last year.