A system for playing data of a remote computer has the remote computer, a network media player and a display. The network media player is able to play data with specified formats. The remote computer uses a data-identifying module to identify formats of data and a data-streaming module to output the data with the specified format to the network media player, or transforms the data to the data with specified format through a data-processing module and continuously outputs the transformed data to the network media player through the data streaming module. The display is connected to the network media player and shows played data.