How to play VOB files that were inside a DVD disc?

Open Ubuntu Software Center, search for vlc and install it.

Then go Applications --> Sound and Video --> VLC. On VLC press Media --> Open folder and select the folder that contains the VOB files.

Finally I figured out how to do it. These are the steps:

• Create a subdirectory called VIDEO_TS and move all files there.

• Create an DVD ISO file by executing:

  genisoimage -iso-level 1 -dvd-video -volset-size 1 -o output.iso root_folder
  

• Mount the DVD ISO by executing:

  sudo mount -t iso9660 -o loop output.iso /media/cd/
  

The result will be a compatible ISO image which can be played using any video player (Totem, MPlayer, Dragon, etc.).

For those ones who are too ubuntufied, you can use K3B to create a DVD project and select "Create image only" before burn it.

Just install VLC player it will play all VOB files.

Install VLC from the Software Center.

Also, you need this:

sudo apt install libdvd-pkg
sudo dpkg-reconfigure libdvd-pkg