RealPlayer

realplayer can be installed in the xo

enter terminal type

$] wget http://software-dl.real.com/30797ed883585619ce21/unix/RealPlayer11GOLD.bin

after it downloads type

$] chmod a+x RealPlayer11GOLD.bin

after that just type

$]./RealPlayer11GOLD

do what it says and done!

this will install it in /home/olpc/RealPlayer/realplay

to run it type

$]/home/olpc/RealPlayer/realplay

NOTE: realplayer DASE NOT work in browse so for (as i now) it only works in firefox