Installers for Windows and Mac OS X and tarballs for Linux etc. can be found here:

    http://sourceforge.net/projects/ps3mediaserver/files/

Instructions for installing packages for Debian and Ubuntu can be found here:

    http://www.ps3mediaserver.org/forum/viewtopic.php?f=3&t=13046

To install PMS from the tarball on Linux etc. (these instructions have been tested on Ubuntu 12.04,
but something similar should work on most Unix distributions), open a terminal and enter the
following commands (replace <version> with the version you're downloading/using e.g. 1.90.0):

1) Install the dependencies (this only needs to be done once):

    sudo apt-get install ffmpeg mediainfo mencoder openjdk-7-jre
    # you can also optionally install dcraw and vlc: sudo apt-get install dcraw vlc

2) Extract the tarball into a pms-<version> directory:

    tar xzvf pms-<version>-generic-linux-unix.tar.gz

3) Run (note: PMS should NOT be run as root):

    cd pms-<version>
    ./PMS.sh

PMS accesses some files in the pms-<version> directory (the working directory).
Other file locations are listed here:

    http://www.ps3mediaserver.org/forum/viewtopic.php?f=6&t=3507&p=32731#p32731