OGG/Theora export?
 

I am working on a project for a client that involves a lot of web video designed around being HTML5 compliant so that it works on iPads as well as all common browsers. It's not really fun at all, given the complexities of browser support for the HTML5 video tag. Firefox requires that the video be in a .ogv format (Ogg/Theora), and I really haven't been able to find a converter that can batch convert. Does anyone know of any plugin for CS5 that I could batch the output through Adobe Media Encoder into this format? Or even a standalone app? Right now I'm using FFMPEG2THEORA and having to manually type out the command to encode each video.

Good info here: Help:Converting video - Wikimedia Commons and there is an open source converter (disclaimer: I have not used this) here: Miro Video Converter FREE - Convert any video to MP4, WebM (vp8), iPhone, Android, iPod, iPad, and more. This is a Mac app, however....

AVIDEMUX, without doubt.

Batch convert, Linux, Win & Mac app.

Multicore. Fast & light.

Avidemux - Main Page