Watch video in Ubuntu

1. Add new repository following http://medibuntu.sos-sts.com/repository.php

2. Install codecs

sudo apt-get update
sudo apt-get install gstreamer0.10-alsa \
gstreamer0.10-esd \
gstreamer0.10-ffmpeg \
gstreamer0.10-fluendo-mpegdemux \
gstreamer0.10-gnomevfs \
gstreamer0.10-plugins-base \
gstreamer0.10-plugins-base-apps  \
gstreamer0.10-plugins-good \
gstreamer0.10-plugins-ugly gstreamer0.10-x
sudo apt-get install w32codecs \
libdvdcss2 \
libxine-extracodecs \
totem-xine \
ffmpeg \
lame \
faad \
sox \
mjpegtools \
libxine-main1

3. Upgrade

sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade

2. Set preferences
Select video driver to xv (X11/Xv)

Reference:
http://tw.myblog.yahoo.com/jw!Z3YOJZSGER5taqtYmemK3uSU/article?mid=368&prev=-1&next=366
http://54061.blogspot.com/2007/03/ubuntu-704-codec-rmvb.html
http://www.ubuntu.org.tw/modules/newbb/viewtopic.php?topic_id=4041&viewmode=flat&order=ASC&type=&mode=0&start=30
http://www.ubuntu.org.tw/modules/newbb/viewtopic.php?topic_id=42&viewmode=flat&order=ASC&type=&mode=0&start=0