"The PS3 Media Server is a DLNA compliant UPnP Media Server for
the PlayStation 3 gaming console. PS3 Media Server is written in
Java, therefore it can be used on Linux, Windows and Macintosh
platforms. It doesn't require any installation! Even if the PS3
Media Server is able to play all the video files out there, some of
them (the ones that are not supported by the PlayStation 3, yet)
will require real-time video transcoding. For the transcoding
operation you will need to have at least an Intel Core 2 Duo
processor and 1 GB of RAM, especially for 720p/1080p
high-definition files, such as the MKV ones.
"Installing PS3 Media Server in Ubuntu:
"As we've mentioned above, the PS3 Media Server does not require
any installation, just grab the latest version from here and
extract the archive on your home folder. It is written in Java, so
make sure that you have a valid Java installation in your PC. For
an easy usage, we will create a desktop shortcut of the PS3 Media
Server executable (otherwise, you will always have to open the home
folder and double click the executable, in order to start it)."