Abstract: A method of providing music data in a compressed digital format, such as MP3, MP3PRO, or WAV, in which a music recording incorporated on one of an analog and a digital recording medium is sent, such as via courier or mail, or otherwise provided by a user to a collection center, the received music recording is converted to data of the compressed digital format and provided, for example over a network, including via wireless connection, to the user, and user music preference information is tracked for future sale or targeted promotions. Also, the data may be provided when demanded by the user for playback, including via streaming. Further, the compressed digital format data may be provided to the user by storing the compressed digital format data on a playback medium provided for user use. The recording medium may be purchased from the user and sold on a secondary market.