But the MPlayer that cames standard in this Linux can't play some of the most common video codecs used on the internet video files (like DivX, XviD, H.264, etc) I don't know if it's a bug in libvacodec (used by MPlayer) or some sort of patent protection to avoid some codec licensing problems on some countries.
Anyway, if you want to play a more "uncommon" codec video file, you can "install" the video codecs available in official MPlayer site for download:
http://www.mplayerhq.hu/design7/dload.html
(get binary codec package for linux x86, decompress it somewhere and put the files (mostly dll's) in "/usr/lib/codecs/")
If you don't know how to do this, open the file manager, and in file menu you can open a terminal to type command lines.
Whenever a password is needed, it's the password you entered in the factory wizard of the first time you started the computer.
So if you downloaded a file say "essential-20071007.tar.bz2" you should do something like this:
tar xvfj Downloads/essential-20071007.tar.bz2
sudo mv essential-20071007/* /usr/lib/codecs/
or in case you want a more complete codec package:
get the file from:
http://www.mplayerhq.hu/MPlayer/releases/codecs/all-20071007.tar.bz2
and accordingly:
tar xvfj Downloads/all-20071007.tar.bz2
sudo mv all-20071007/* /usr/lib/codecs/
now your MPlayer sould be able to play some more ccodec types, but unfortunately not the most common ones, so here you can get a new version of MPlayer that can play almost everyting (somewhat like VLC) files needed:
http://dl.atrpms.net/all/libfaac0-1.26-3.fc8.i386.rpm
http://dl.atrpms.net/all/libx264_54-svn20070414_2245-4.fc8.i386.rpm
http://dl.atrpms.net/all/mplayer-1.0-63_rc2.fc8.i386.rpm
ftp://fr.rpmfind.net/linux/freshrpms/fedora/linux/8/mplayer-skins/mplayer-skins-1.8-1.noarch.rpm
They are RPM packages made for Fedora Core 8 so you can install them on your One's Linux - you should follow by that order.
And to conclude some more command lines:
cd /usr/share/mplayer/
sudo ln -s Skin skins
cd Skin
sudo ln -s bluecurve default
And U'll have a new fully functional version of MPlayer with dozens of new skins available.
Right click on any of MPlayer's window and select skin browser to try them.
PS: If MPlayer starts complaining about a missing font (at the begining of playback), go to it's preferences (right click menu of MPlayer) and select this font:
/usr/share/X11/fonts/TTF/luxisr.ttf
Good MPlaying ;)