@ roach as long as you have access to internet (like free wifi) and storage capacity to download a movie (500mb up to 6gb depending on sd/hd and movie length) you can use computer or apps on phones/tablet to Stream or DL the movie anytime as many times - codes are not players they are Records of movie rights/ digital ownership (like owning the movie but online - in the cloud as they say) many don't use the codes because to get them you get the disk - since they have the disk they feel code pointless -- but should ever the disk get scratched, lost or stolen you still have access to DL or stream the movie. iTunes is the same thing basically as uv it's just apples version (though apple needs iTunes app/player to DL or stream and uv has a few options (vudu target ticket, cinemanow, flixster ect ect) both offer sd , hd or both depending on what's offered with disk (iTunes usually comes with both when offered)