Music is blanket transmitted (for example, via satellite downlink transmission) to each customer's user station where selected music files are recorded. Customers preselect from a list of available music in advance using an interactive screen selector, and pay only for music that they choose to playback...http://www.google.fr/patents/US20070276740?utm_source=gb-gplus-shareBrevet US20070276740 - MUSIC DISTRIBUTION SYSTEMS
