If you have ever purchased or rented a video from the Google Video Store, it will cease to function on August 15, 2007. That's because the Google Video Store is being shut down and along with it Google 's associated DRM system.
Customers will get credits in Google Checkout for what they spent on Google Video Store products, but not cash refunds, meaning that they must buy merchandise available via that service to recoup their losses. Of course, this does not compensate purchasers for the inconvenience of having to replace their videos (assuming that they can).
This fiasco underlines a key problem with DRM: it doesn't just restrict access, it restricts access using proprietary technologies, and, with few exceptions, those technologies cannot be legally circumvented under U.S. law.
Source: Fisher, Ken. "Google Selleth Then Taketh Away, Proving the Need for DRM Circumvention." Ars Technica, 12 August 2007.