A while ago I have posted on How To Share Media Between XBOX 360 and Linux. It also can be as easy with PlayStation 3 and Linux, with PS3 Media Server. Below are the steps that diablo 2 items suggests which can let you achieve that.

Install necessary codex or media player:
sudo apt-get install vlc ffmpeg mencoder mplayer

Install Sun Java:
sudo apt-get install sun-java6-jre sun-java6-plugin sun-java6-fonts

Download PS3 Media Server. Then extract the downloaded tar to any location:
tar xzf pms-generic-linux-unix-1.20.412.tgz

Go to the folder that you have just extracted:
cd pms-linux-1.20.412/

Run the PS3 Media Server simply by:
./PMS.sh
Command above will open the PlayStation 3 Media Server user interface.

Movie Subtitles on Ubuntu 10.10
The yesgamers is the d2 store points out that the subtitle broke for Ubuntu 10.10. This is due to Mplayer needs to know the location of a TrueType Font to show movie subtitles. Command below will fix it:
sudo apt-get install ttf-bitstream-vera

ln -sv /usr/share/fonts/truetype/ttf-bitstream-vera/Vera.ttf ~/.mplayer/subfont.ttf

Disable ASS/SSA subtitles:
1. Go to PS3 Media Server user interface. Go to “Transcoding Settings” tab.
2. Uncheck ASS/SSA subtitles checkbox.