Create an H.264 encode of your animation

[Mazin]

Now that you have your nicely-encoded "animation.264" and "animation.aac" files, it's time to put them together in a "container format." AVI, MOV, MKV, etc. are all container formats that can store (sometimes multiple) video tracks and audio tracks, each track encoded in any variety of codecs. You could put H.264 video and AAC audio in an AVI, but it's not recommended. MP4 is a popular container nowadays for, well, MPEG-4 video. It's flexible and open and QuickTime supported.

YAMB is specifically for muxing MP4s. Open it up and pick the first option, "Click to create an MP4 file ...". Add in your "animation.264" and "animation.aac" files. Right-click the video file and and go to Properties. Set its frame rate to 29.97 (or at least that's what I expected you exported it as; 30 is fine as well). Choose an output file, like "animation.mp4". Next. It thinks for a short time, since it's not encoding video, just copying it in.

Try opening up your shiny new MP4 in QuickTime.