Music is blanket transmitted (for example, via satellite downlink transmission) to each customer's computer-based user station. Customers preselect from a list of available music in advance using an interactive screen selector, and pay only for music that they choose to have recorded for unlimited playback,...http://www.google.com/patents/US8019688?utm_source=gb-gplus-sharePatent US8019688 - Music distribution system and associated antipiracy protections
