[Added Associations]
video/mpeg=gst-launch.desktop;
video/x-msvideo=gst-launch.desktop;
video/mp4=gst-launch.desktop;
video/quicktime=gst-launch.desktop;
video/x-ms-wmv=gst-launch.desktop;
video/x-matroska=cd gst-launch.desktop;
audio/mpeg=gst-launch.desktop;
audio/basic=aplay.desktop;
audio/x-wav=aplay.desktop;