Markdown includes syntax for embedding images, but not audio and video files. Embedded video in particular has become a lot more commonplace since John Gruber wrote the original Markdown spec. It would be good to have a standard, er common, way to embedded audio and video using Markdown.
I currently use the following syntax, transforming image tags based on particular file extensions:
<audio controls="controls"> <source type="audio/mp3" src="filename.mp3"></source> <source type="audio/ogg" src="filename.ogg"></source> <p>Your browser does not support the audio element.</p> </audio>
And for video:
<video controls="controls"> <source type="video/mp4" src="filename.mp4"></source> <source type="video/webm" src="filename.webm"></source> <p>Your browser does not support the video element.</p> </video>