$ sudo apt-get update
$ sudo apt-get install remuco-mplayer 

remuco-mplayer is installed in your system.

Make ensure the remuco-mplayer package were installed using the commands given below,

$ sudo dpkg-query -l | grep remuco-mplayer *

You will get with remuco-mplayer package name, version, architecture and description in a table

remuco-mplayer package basic information: