Google Video, when it was originally introduced, was a competitor to YouTube that let you upload videos and either offer them for free or charge users to view them. If you wanted to view a video you purchased, you had to download the Google Video Player to see it.
The service was not a big hit, Google ended up buying YouTube, and they eventually shut off the ability to charge for videos. Google Video began to be converted into a search engine for video files rather than a place to distribute them. Anyone who had ever purchased a video from Google Video was offered a refund.