The PNG exports had a weird shade of purple and SVG display fine on the
page.

The output of VLC has no sound in Safari and doesn't load in Internet
Explorer.

Despite Mozilla listing "VP8 and Vorbis in WebM" as compatible with
Internet Explorer and Safari it doesn't work on my machines while MP4
seems to work.

https://developer.mozilla.org/en-US/docs/Web/HTML/Supported_media_formats

Let's not put it in tails.git but I'm not sure it's worth creating
another repo for it.