Unlike a standard DVD code that plays the movie, this serial number was your "proof of purchase" to download a DRM-protected file onto your computer (via iTunes or Windows Media Player) or later, to unlock the movie on services like Google Play, Vudu (now Fandango at Home), or Movies Anywhere.
The Alvin and the Chipmunks franchise offers a wide range of digital copies and serial numbers for fans to enjoy. From the original 1958 song "The Chipmunk Song (Christmas Don't Be Late)" to the latest movies and TV shows, there are numerous options available. Here are a few examples: alvin and the chipmunks digital copy serial