Comment 3 for bug 671703

Oddly, I downloaded the start of the MP4 file (kaminomi-01.mp4), and encoded with:

./ffmpeg2theora -x 320 -y 200 -o FOO-kaminomi ../kaminomi-01.mp4

The resulting ogg file plays fine, and audio seems correct, and in sync with the video.
It has two channels:

$ oggz info FOO-kaminomi
Content-Duration: 00:00:12.137

Skeleton: serialno 0925981002
        6 packets in 5 pages, 1.2 packets/page, 2.139% Ogg overhead
        Presentation-Time: 0.000
        Basetime: 0.000

Theora: serialno 0925981000
        295 packets in 99 pages, 3.0 packets/page, 1.071% Ogg overhead
        Theora-Version: 3.2.1
        Video-Framerate: 23.976 fps
        Video-Width: 320
        Video-Height: 200

Vorbis: serialno 0925980999
        649 packets in 28 pages, 23.2 packets/page, 1.278% Ogg overhead
        Audio-Samplerate: 48000 Hz
        Audio-Channels: 2

Might be a difference in the ffmpeg versions used. I'm using:
ffmpeg2theora 0.27 - Xiph.Org libtheora 1.1+ 20100314 (Ptalarbvorm)
compiled with a ffmpeg from late march.