I have installed Ubuntu 12.04 on my system after 20 years of windows. I also installed it on a virtual machine. I have noticed that Ubuntu restricted extras in the regular system are different from the virtual machine. Is this OK?
Image 1 is Ubuntu 12.04 running inside a Virtual Machine
Image 2 is Ubuntu 12.04 running from PC
The actual install of ubuntu-restricted-extras should be fine, try installing it first, for the add-ons, it looks like there is a bug in not listing them, they still should be available if you search for the names individually in synaptic package manager. For Adobe Flash plugin search for the name in parenthesis , flashplugin-installer , ect.