unofficial mplayer

[AntonioI]

Have you remembered to update the package list with

  $ sudo apt-get update 

at each archive change? If you have just updated the list and got the
same error try:

  $ sudo apt-get -f install

this will try to fix the conflicts. If this does not work either, then
try to remove some archive, starting from the backports... etc. Each
time you must update (first command) and then try the secon command to
fix the things. Continue untill you will return in a consistent state,
so you can again install packages.

- Antonio