Congratulations,
anime_layer, I was reading random blogs around and noticed that one of them had a news regarding MPlayer Extended (r6), here's the link (in spanish, tho).
http://www.applesfera.com/2008/08/23...layer-para-mac
More or less at the end they say that the player is very promising and that they hope it gets at the same pace as VLC as in stability and speed, but that it's very good and that it doesn't hurt having it installed in the computer.