I was about to say the same thing as @geekosaur, but noticed in the comments that you don't have internet connection on that PC. In general, on Linux software is divided into packages (
zypper are examples of packages). Packages are stored in repositories and have dependencies on other packages. To save you the task of managing them, there are package managers, such as
You don't normally install software from source, but use the package manager that comes with your system. Now the big problem is that you don't have internet connection on the computer that you want to install software on. If possible, it's a lot easier to plug the cable in and let
zypper download what it needs. If that's not possible, most package managers have the ability to install from a local repository.
I'm not a SUSE user, but from the documentation you can download the required .rpm files to make a local repository, then tell
zypper about it:
# zypper ar my/dir/with/rpms local
After that you can install
mplayer without internet connection:
# zypper install mplayer
zypper then tells you that it needs to install other packages as dependencies (and it will fail because there is no internet connection), you will have to look for the RPM files it need, download and put them in
my/dir/with/rpms (BTW that's a fake path, change it to whatever path you store the files).