chuck@chuck-debian:~$ sudo apt-get build-dep mplayer
Reading package lists... Done
Building dependency tree... Done
Note, selecting libdvdread-dev instead of libdvdread3-dev
Note, selecting libjack0.100.0-dev instead of libjack-dev
E: Build-Depends dependency for mplayer cannot be satisfied because no available versions of package libtheora-dev can satisfy version requirements