Terminal is the command line, and is used a lot in software modifications. To open terminal, hit ctrl-alt-t (holding ctrl and alt, then hit t) To paste into the terminal, you have to hit shift-insert, not ctrl-v

Open terminal Enter the following line of code, then hit enter sudo kwrite /etc/apt/sources.list

This brings up a text editing program. Add the following line under the two existing lines

deb ftp://ftp.uk.debian.org/debian etch main contrib non-free

Note: The country code most relevant to you cn be substituted, eg us/de/it etc

Now save (ctrl-s) and exit (alt-F4)

Connect to the internet

Back in terminal, enter the following lines of code, hitting enter after each

sudo apt-get update

sudo apt-get install vlc

Some people like to remove the repository that you added earlier. In terminal, enter

sudo kwrite /etc/apt/sources.list

Delete the line deb ftp://ftp.uk.debian.org/debian etch main contrib non-free or add a # in front of it to make it temporarily unused.

Alternatively read the wiki page adding additional repositories and add extra repos with pinning.

Save (ctrl-s) and exit (Alt-F4)

Back in terminal enter Sudo apt-get update

There are icons here Instructions to add icons to easy mode are here

Alternatively, you can just right-click on your media files, select open with, then browse. Select VLC and then “use this as default program”