MPlayer - Invalid and inefficient vfw-avi packed B frames detected

[Byung-Hee HWANG]

Recently, i upgraded packages all by csup(fetch: 2010-05-14)  +
portupgrade. I did mplayer, too. After all that, when i launched mplayer
with some avi movie file, mplayer said "Invalid and inefficient vfw-avi
packed B frames detected". Also mplayer's subtitle(Korean) was broken.

Actually the mplayer of 8.0-RELEASE's official package is good. That have
no such problems.

Is there a solution?

I'm running FreeBSD 8.0-RELEASE. 
And here is all packages installed (see following link).
<URL:http://izb.knu.ac.kr/~bh/stuff/pa20100522.lst>

Sincerely,

Byung-Hee