In the US, under the DMCA law (and potential patent laws), it is possibly illegal to distribute libdvdcss – thus some distributions such as Ubuntu do not package the library with their official distribution. The question whether libdvdcss is legal or not has never been court tested, so there is no conclusive answer as to whether it can be used and distributed legally.
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.DVD playback and w32codecs