The easiest way to get mplayer to work in suse 9.1:
1. Open YAST
2.
Change Source of Installation
3. "Add" "Http"
4. (server name) packman.iu-bremen.de (directory on server) /suse/9.1/
5. Click ok, there should be a pause, and a new line added to the list "On Packman (Suse Linux 9.1)
http://packman.iu.bremen.de//suse/9.1/"
6. While your there, also add this FTP source... "Add" "ftp" (server name) 195.135.221.132 (directory on server) /pub/suse/i386/9.1
7. This line should be added: On SUSE LINUX Version 9.1
ftp://195.135.221.132//pub/suse/i386/9.1
8. click Finish, go back to YAST control panel
9.
Install and Remove Software
10. Search for mplayer, check "mplayer" and "mplayer plugin"
11. Check "autocheck dependencies" and click "accept"
12. Close YAST Look for mplayer in the Menu: Multimedia/VideoPlayer/
Some mplayer commands:
f=full screen toggle
space=pause
9,0=volume
+,-=audio sync
q=quit
If I forgot anything, or it doesn't work, please say so.
P.S. if you tried something like this in windows, you'd have to reboot.