A group of media electronics companies are trying to build and market the first digital movie locker, named UltraViolet.

But what exactly is a digital movie locker?

Built by the company Digital Entertainment Content Ecosystem (DECE), the UltraViolet digital movie locker stores movies you purchase, regardless of the format or where you purchase it from, into one location so you can watch your movies at any time.  Your account will go with you no matter what machine you use, just like your card at an ATM machine.

The main idea is that the UltraViolet stores tokens or proof of purchase whenever the consumer purchases a DVD, Blu-Ray disc, or downloadable content.  The machine then allows the consumer to view their purchases from any machine he or she desires, including mobile devices and televisions.

So far DECE has some pretty big backers in Warner Bros., Netflix, Best Buy, and Microsoft, Inc.

 However, Apple has not thrown its weight behind the device, potentially posing problems for items bought through Apple products like the iPad or iTunes.  Apple declined to comment about the situation.

Another group who hasn’t backed DECE is The Walt Disney Company, who plans to make a digital movie locker of their own called KeyChest.  There’s no word as to how far long this project is.

There’s still a few hurdles to face in the making of UltraViolet, one of the biggest being that the retailer selling the product may not be the one who has to spend the money to send the product to the consumer either over the Internet or over set-top boxes.  Despite that, this concept is a strong one and I certainly hope it gains ground.