since the livecd is built with USE=bindist, and mplayer does exactly the same thing for USE=livecd as USE=bindist, there's no point in having both ... just drop the USE=livecd
Indeed. This was done back before catalyst enforced USE=bindist and we were (erroneously) building without it. It can go now, for sure.
Fixed in mplayer-1.0_rc2_p25993-r1
This was updated in release snapshot by Chris Gianelloni.