Vudu is a closed system consisting of the Vudu Box, a $399 device that connects to your television. Kind of like Comcast’s On Demand service, Vudu uses a broadband Internet connection to send movies directly from their servers to your television.

However, not all movies offered by Vudu are the same in regards to what you can do with them. Instead, each movie’s usage rights are assigned on a case-by-case basis. Some movies are available for both renting and purchasing, while others are strictly rentals, with rentals remaining in the Vudu Box for up to 30 days before the first viewing. Once viewed, users have 24 hours for repeat viewings before it vanishes.

Vudu is offering “The Bourne Ultimatum” for sale only and is pricing the flick at $24.99. As most films’ post-movie theater marketing strategies are based on releasing DVD versions first and rentals much later, the tandem release of The Bourne Ultimatum on DVD and as a Vudu download is another sign that Hollywood is still experimenting with digital distribution.

But downloading a flick from Vudu, even if you decide to purchase rather than rent, is not the same as actually buying the DVD. That’s because the Vudu Box does not allow for DVD burning. Buy a movie from Vudu and the film stays in the box, a sign that Hollywood isn’t yet ready to give movie fans the same portability with downloads that it does with physical DVDs. At least, not yet.