rikytik m8, some people still dont know how to use wma files. the copy protection is enabled by default in windows media player 7.1 and in 8, so when u encode them they can only be played at the person's computer who encoded them (unless a licence is also provided to others).
that's why we can't play some wma files when p2p sharing.
in windows media player 9, when u start encoding files for the first time and if the copy protection is enabled, a message box pops up and asks: the copy protection is enabled, do u want to change it (something like that).
so it is highly unlikely that we miss to disable it.
well m8, seriously i havent given up my hunt to decrypt my precious old songs.

so u encoding in wma or what? i am encoding at WMA9 VBR 98% (240kbps ~ 355kbps) quality and no one can equal that quality by MP3. (because MP3 320kbps quality is already beaten by WMA9 when it passes 160kbps).