UOX3.org

I wish we was able to define the new mp3 music from uo folder in our regions as midi files our outdated.

MP3= tag for regions.

I'm pretty sure that the MP3 files will still play, as long as you have the LBR feature enabled in the CLIENTFEATURES setting (see UO client versions/expansions and compatibility with UOX3 for details). Not sure how exactly it matches up the different IDs to the music though.