• One way is to right click, say on an AVI file, select 'properties' and select the 'Open with' tab. Select VLC or add it and close properties. From then, all AVI files will be opened with VLS.

  • For DVDs you can go to Panel menu > System > Preferences > Removable Drives and Media and go to the 'Multimedia' tab and change it from Totem.

Resource from Here

  • Detailed Answer would be

1 Click the "System" menu at the top of the screen, then click "Preferences" and "Preferred Applications."

2 Click the "Multimedia" tab.

3 Click the drop-down menu and select "Custom."

4 Type "vlc %f" in the "Command" box.

5 Click "Close" to make VLC your default video player.

Resource from here


Another way is to set VLC-Player as default player for all your video files.

  • Click the "System" menu at the top of the screen, then click "Preferences" and "Preferred Applications."
  • Click the "Multimedia" tab.
  • Click the drop-down menu and select "Custom."
  • Type "vlc %f" in the "Command" box.
  • Click "Close" to make VLC your default video player.

That´s how I did it according to this website. Worked for me ;-) But I guess subanki´s answer is more specific because it sets the player for the file extension.