Install libdvdread4 by entering the following commands in the terminal:
sudo apt update sudo apt install libdvdread4
Description:
library for reading DVDs
libdvdread provides the functionality that is required to access many DVDs. It parses IFO files, reads NAV-blocks, and performs CSS authentication and descrambling. . libdvdread probes for libdvdcss at runtime and if found, will use it to decrypt sections of the DVD as necessary. libdvdcss needs to be installed from third-party repositories (see README.css), it's not included in Debian.
Homepage: http://dvdnav.mplayerhq.hu/
Version: 6.0.0-1
Section: universe/libs