Running multiple repositories on a distribution is sometimes problematic and ends up in conflicts regarding different packages . But for those packages which are missing from Fuduntu`s native repositories due to legal matters you can enable third party repositories at your own risk and expertise level of how to handle problems that might arise at some stage due to the third part packages.
ATrpms is one such repository that I enabled to get packages I needed and missing from Fuduntu`s native repositories.
This is what I did :
1 ) Opened /etc/yum.conf file as super-user in a text editor ( leafpad : my favourite ! ) and copied these lines into it
[atrpms] name=Fedora Core $releasever - $basearch - ATrpms baseurl=http://dl.atrpms.net/f$releasever-$basearch/atrpms/stable gpgkey=http://ATrpms.net/RPM-GPG-KEY.atrpms gpgcheck=1
# This is the default, if you make this bigger yum won't see if the metadata
# is newer on the remote and so you'll "gain" the bandwidth of not having to
# download the new metadata and "pay" for it by yum not having correct
# It is esp. important, to have correct metadata, for distributions like
# Fedora which don't keep old packages around. If you don't like this checking
# interupting your command line usage, it's much better to have something
# manually check the metadata once an hour (yum-updatesd will do this).
# PUT YOUR REPOS HERE OR IN separate files named file.repo
# in /etc/yum.repos.d
name=Fedora Core $releasever - $basearch - ATrpms
Save and exit
Executed this command to refresh packages list
saleem@home-pc ~ $ sudo yum check-update
3 ) Installed the packages I needed as
saleem@home-pc ~ $ sudo yum install rar libdvdcss libdvdcss2
4 ) Disabled ATrpms from Yumex which is very easy by unchecking it from the list .
It is important to keep in mind that if you have rpmfusion repository enabled also then the packages from it and ATrpms will conflict with each other and you will have to manually diable rpmfusion repository for time being . It is also important not to keep ATrpms repository enabled all the times but only when a package is needed from this repository .