video & audio simultaneously in html5
I've read somewhere that I can no longer recall that a video file and a separate audio file cannot play on the same slide simultaneously on a slide when using HTML5.
I've done narration in an audio file, and a separate video file. Sure, I could combine them, but would rather not.
When I preview, both my audio and video work fine. Do I remember it correctly that some browsers won't support this? Is it reliable to have both files play simultaneously in HTML5 cross browsers?