[pornel]

A major use-case is to efficiently play a clip from a video camera, so purely vector animation or a sequence of frames from still images isn't good enough.

I've tested an SVG with an <svg:video> element (http://www.w3.org/TR/SVGTiny12/multimedia.html#restrictedVid...), but unfortunately it doesn't seem to be supported anywhere.

I've also tested an SVG playing video via HTML in a <foreignObject>. In Firefox it does play when the SVG is opened as a standalone file, but not when embedded in <img src>. So close :(

[TheZenPsycho]

sequence of still images from jpeg frames is still an improvement over gif for that usecase. Plus, all the same optimisations (and more) that have been available to gif for that use case are also available to SVG. Just not in any authoring software.