Copyright-relevant data e.g. windows media audio file, transmitting method involves transmitting required audio file from server e.g. internet server, to mobile device e.g. mobile phone, if mobile device possess appropriate authorization

摘要

The method involves sending a requirement for an audio file e.g. Windows media audio (WMA) file, to a server e.g. internet server, by a mobile device e.g. mobile playback device (WG), and receiving the requirement of the mobile device by the server. The mobile device is identified on the basis of the Internet protocol-address of the mobile device. The authorization of the mobile device is verified, where the required file is transmitted from the server to the mobile device, if the mobile device possess an appropriate authorization.