the newest mpalyer now has real media support (some info here: http://www.mplayerhq.hu/DOCS/codecs.html#realvideo ) and it could use an optional depend on real player so it can use its codecs adding some use realplayer or something and having --with-reallibdir=/opt/RealPlayer8/Codecs will allow mplayer to use the installed codecs of realplayer i tested this with just adding that line to the configure line in the mplayer ebuild and it seems to work fine :)
same as #6286
*** This bug has been marked as a duplicate of 6286 ***