You will also need the following to hear the audio:
In order to be able to view Flash Animations in your web browser, you need to install Macromedia Flash Player, which is available to download free of charge.
Video files with a .wmv can be viewed by the video player Windows Media Player, which is available to download free of charge.
Video files with a .mov extension can be viewed with QuickTime, which is available to download free of charge.
Video files with a .mpg extension can be views with various video players.
Audio files with a .mp3 extension can generally be opened with the default audio player software installed on your computer. Several audio players are available free of charge such as:
The above links are provided for convenience only and no endorsement or recommendation is made as to which particular software program should be used.