VBox is an interactive application that runs on the set-top box and is accessed through the PrimeTV on-screen menu. The majority of the processing is performed on the PrimeTV video server, where the entire music video database is also saved. When the user has finished specifying the music selection, the list of songs is saved on the box and is transmitted to the video server for the execution of the requested search.

When the user starts playing the playlist, the STB sends the command to the server, which in turn streams the content exclusively to the user who has sent the request.