Using Haihaisoft DRM-X, a retail Web site can offer consumers the opportunity to preview songs before buying them. For example, consumers are permitted to download any songs and play them twice after they register on the website. If the consumers attempts to listen to the songs at the third time, they are taken directly to the retailer's Website where they are given instructions on how to purchase the song. In this scenario, content providers are able to promote their recording artists and albums on the Internet while cutting down costs on the real market. Of course the registration information of the consumers also can be used to strengthen their mailing list.