The latest video is ready for the CityTalks website, so I'm doing the usual conversion as documented in other posts, from MP4 to MPG, and then MPG to OGV:

ffmpeg -i DrLS.mp4 -target vcd -s 400x224 DrLS.mpg

ffmpeg2theora DrLS.mpg --output DrLS_3.ogv --videoquality 8 --videobitrate 200 --optimize --sync

When it's done, I'll post it on the site (probably won't be till Monday).