Users shopping online for DVDs and Blu-ray discs on Walmart.com (NYSE:

) will now have the option of buying or renting digital copies of titles that are available as part of the Vudu streaming library. Walmart purchased Vudu 18 months ago. The video can then be accessed either through the Walmart website, Vudu.com or on any of the 300-plus connected devices that the Vudu streaming service is available on.