A method and device are disclosed for presenting content data (such as a video, an audio and a Flash) from a network. In content-related information (such as a webpage file) of related content data from a network, a plurality of content data sources are often provided for the same content. A weighted value is respectively set for each content data source based on the content-related information. Based on the weighted value of each content data source, a content data source is selected so as to present the content data. The weighted values can be set by considering various factors. In an embodiment, in consideration of different supporting capacities of a terminal system for different types of content data, the weighted values are set according to an MIME type of the content data sources.