You could do some searching for something like pbone mplayer rpm . When you find the rpm that you want, download it to a directory like /home. Then you install it with a command like ....
rpm -Uvh mplayer-<whatever-numbers>.rpm
Or you could let yum do the work for you!
Livna has a lot of goodies which may be hard to find elsewhere including mplayer and I use yum for just that occasion.
Create a file called /etc/yum.repos.d/livna.repo and paste this line into it.
[livna]
name=Fedora Extras
baseurl=http://rpm.livna.org/fedora/3/i386/RPMS.unstable
enabled=1
gpgcheck=1
Then run this command:
rpm --import http://rpm.livna.org/RPM-LIVNA-GPG-KEY
Then run this command:
yum update
Then run this command:
yum install mplayer or maybe
yum install mplayer-gui
Note: livna has other sections for yum such as RPMS.testing , RPMS.stable
If you are interested in those, just add them to the /etc/yum.repos.d/livna.repo like this ....
[livna-stable]
name=Fedora Extras
baseurl=http://rpm.livna.org/fedora/3/i386/RPMS.stable
enabled=1
gpgcheck=1
[livna-unstable]
name=Fedora Extras
baseurl=http://rpm.livna.org/fedora/3/i386/RPMS.unstable
enabled=1
gpgcheck=1
[livna-testing]
name=Fedora Extras
baseurl=http://rpm.livna.org/fedora/3/i386/RPMS.testing
enabled=1
gpgcheck=1
If you want to see what packages are available, you can go directly to the site and look around or you can type the command:
yum list