Patent ID: 8407467

Claim:
A ubiquitous audio reproducing method comprising: determining whether a memory card storing one or more lossy audio sources and one or more authentication codes corresponding to the one or more lossy audio sources is inserted; if it is determined that the memory card is inserted, extracting the one or more authentication codes stored in the memory card and automatically connecting to a website via a controller, the website corresponding to a content server that stores content corresponding to the lossy audio source stored in the memory card; if it is determined that the memory card is inserted, transmitting an authentication code of a lossy audio source in the memory card and a system unique Identifier (ID) to a content server by connecting to the content server via a network; and if the content server allows the use of a lossless audio source corresponding to the lossy audio source using the authentication code, streaming and downloading the lossless audio source and contents information from the content server.