libdvdnav4 software package provides DVD navigation library, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libdvdnav4
libdvdnav4 is installed in your system.
Make ensure the libdvdnav4 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libdvdnav4 *
You will get with libdvdnav4 package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Libraries |
| Package | libdvdnav4 |
| Version | 4.2.1-3 |
| Description | DVD navigation library |
| Sub Section | libs |