Download and install the following packages in the order shown:
http://dl.atrpms.net/all/libdvdcss2-1.2.11-6.fc16.i686.rpm (Shared libraries for package libdvdcss)
http://dl.atrpms.net/all/libdvdcss-1.2.11-6.fc16.i686.rpm (A portable abstraction library for DVD decryption)
More information about these packages can be found here: http://packages.atrpms.net/dist/f16/libdvdcss/