Rendered file black, even though Play Rendered Animation is correct I downloaded a Blender intro template. I rendered it and it saved. I went to open the file, but the video is all black and only the music is playing. I looked at the Blender Play Rendered Animation (Ctrl + F11) and it was fine; with video. Please help.
When you render the file you must choose the output format and the video codecs. Probably your video player is not supporting the video codec that has been rendered.