ffmpeg -i input.mp4 -c:v libx264 -profile:v baseline -movflags faststart -crf 23 -c:a libfdk_aac out.mp4
{endcode}
-Warning: iPhones (as of 3S) can apparently only accept video up to 640x480.
+Warning: iPhones (as of 3S) can apparently only accept video up to 640x480. (Maybe? Double check.) If this is true, we may want to also export low-resolution versions and have a link to a different place to view the videos for lower end devices.
(Instead of libfdk_aac, you can use libfaac. The original source did so. It appears that libfdk_aac is a superior replacement.)
