Method of preventing reduction of sales amount of records due to digital music file illegally distributed through communication network

摘要

A method of preventing reduction of sales amount of records due to a digital music file illegally distributed through a communication network is disclosed. The method comprises the steps of a)producing an advertising digital music file by deteriorating or damaging a sound quality of an original music file of a record of a cooperating record corporation; and b)distributing the advertising digital music file through the communication network. The present invention provides a method of producing a digital music file with lower sound quality for publicity, and distributing it over the network before a formal record is sold, thus minimizing a distribution of the illegal digital music file with the same quality as the original music file on the network.