A system and associated method for minimizing network traffic in playing a media stream with a media module running in a client computer system. The media stream is stored in a media content server. A video file of the media stream is processed to generate an audio file corresponding to the video file, such that the media module downloads and plays the audio file when the media module is invisible on a computer screen of the client computer system. When the media module becomes visible, the media module switches back to downloading and playing the video file. A current location is tracked by a location sync file stored in the media content server to synchronize the video file and the audio file.