are you using Riivolution or Gecko?
I'm using Gecko and Stack Smash.
Also, I just tried it and it works, but the song names only show up in the "My Music" area, not in game. Here's what I did:
I opened "info.pac" in BrawlBox. I exported MiscData[140] (has the songs) as a .msbin. I then opened up mu_menumain.pac and replaced its MiscData[7] with the MiscData[140]. The songs only appear in the My Music area.
I'm assuming I have to edit the .pac that contains the music appearing at the start of a match? If so, where is it?Very late edit: It worked all along; the titles don't appear in Training Mode which I've been using to test it. They only appear in Versus Mode.