So, no, it isn't a good thing to get RealPlayer, Helix Player, VLC, MPlayer, Totem, QuickTime, Windows Media Player, Exaile, Songbird, Xine, XMMS2, and all the other stuff in Multimedia subcategory. The only interesting stuff from this list is libraries from RealPlayer, Windows Media Player, and QuickTime. Those we want in /usr/lib, and we want them native, debianized, and legal. Then our media player can play such files. Which... is what Fluendo and/or Nokia did because some of these codecs got ported to Maemo 5 (with patent license paid).