Install Ubuntu Restricted Extras

sudo apt-get install ubuntu-restricted-extras

Ubuntu restricted extras is a single package contains lot of use full plugins and extras that essential for ubuntu. It is not installed by default due to the license restrictions of various softwares. Restricted Extras contains softwares given below.

flashplugin-installer
gstreamer0.10-ffmpeg
gstreamer0.10-fluendo-mp3n
gstreamer0.10-pitfdll
gstreamer0.10-plugins-bad
gstreamer0.10-plugins-ugly
gstreamer0.10-plugins-bad-multiverse
gstreamer0.10-plugins-ugly-multiverse
icedtea6-plugin
libavcodec-extra-52
libmp4v2-0
ttf-mscorefonts-installer
unrar

http://packages.ubuntu.com/quantal/ubuntu-restricted-extras

Embed Videos In Your Web Pages Using HTML5

A neat how-to on embedding video in HTML5 pages. I’ll be doing this soon on my clients’ sites.

HTML5 video is taking the web by storm.

From giant video sites like YouTube to Wikipedia, everyone it seems wants to get their video out of Flash and into native web formats. With Microsoft recently announcing it will support the HTML5 video tag in the coming Internet Explorer 9, expect even more sites to abandon Flash for native video.

http://www.webmonkey.com/2010/05/embed-videos-in-your-web-pages-using-html5/