[MPlayer-users] Requested video codec family [wmv9dmo] (vfm=dmo) not available.

[Sascha Sommer]

> How do i "Enable it at compilation."? Is this not just a default error
> message?
>

Test if configure outputs a line like this (should print the path of your 
codecs dir of course)
Checking for Win32 codec DLL support ... yes (using /usr/lib/win32)

If not you need to specifiy it manually.

Sascha