Where are Flash / Java / mp3 support? Is there a Free and working DVD player or video player?
There are a number of commonly used formats and tools that we are unable to support because they have restrictive distribution rights, require special licenses, or are patent encumbered. We may be able to provide support for some of these in restricted, but in general, we would prefer to support Free software and Free formats.
If you add the debian-marillat repository to your Ubuntu sources.list (use testing/main), you can use Synaptic or apt-get to install MPlayer, lame, and other tools to deal with non-free formats like DVD and MP3.
A relatively clean way of getting Totem to work with all the proprietary file formats is to install totem-xine rather than totem-gstreamer. Then you can download the win32 codecs from elsewhere and install them in ~/.gnome2/totem-addons/ and everything works fine. Of course, this isn't as cool and integrated as using GStreamer for handling all the media, but it works well.
If you wish to use the Java SDK/RE, see Java on Debian for an installation guide (it's also valid for Ubuntu).
As an alternative to the above mentioned Java on Debian tutorial, you may wish to install some pre-packaged packages. The website http://z42.de/debian/
lists an apt source that lets you install for example Sun Java2 v1.5 with a single command:apt-get install sun-j2sdk1.5 sun-j2sdk1.5debian
http://www.ubuntulinux.org/support/docu ... 3469703387