w32codecs this is a package of codecs needed to play multiple formats, notably DivX. (disponible. Maintainer: MirSPCM)
libdvdcss is a highly portable library for accessing and unscrambling DVDs encrypted with the CSS system. It is part of the VideoLAN project and is used by VLC and all other open source DVD players such as Ogle, xine-based players and MPlayer.