Not quite sure the service makes any sense. Here's how it works: You bring your physical DVDs or Blu-ray discs to a participating Walmart store, then pay $2 per disc to access the streaming equivalent through Vudu on supported devices, including computers, tablets, smartphones and game consoles--basically anything that supports Vudu.
First you'll need to create both a Vudu.com and UltraViolet account (the latter is the movie industry-led digital rights management process for converting discs to digital versions).
Once those two accounts have been linked, Walmart says you can bring your DVD or Blu-ray in for conversion, at which point a Walmart rep--typically located in each store's photo section--will ask for the email address associated with your Vudu account.
Next, you select whether you're after the $2 SD or $5 HD version--the Walmart rep confirms you can't have both, which is unfortunate for HD buyers who want an SD alternative on devices with low bandwidth or data-caps. Your disc gets a stamp afterwards so that you can not use it for conversion anymore.
After all of these hoops to jump through, it seems simpler to just buy a Pogoplug or buy Pogoplug software, which allows you to access anything on your home computer the same way. A one time initial fee and you avoid the Walmart-Vudu mess. Maybe I am missing something with this new service. It's too much work and too complicated for the casual/novice user. Experienced users already know 5 other ways to accomplish the same thing without the cost.