Well, there are 2 ways for sound to be built into a PSP ISO for xmb display in GAME category.

1st - is the sound is sometimes built into the icon1.pmf

2nd - is it is stored as a .at3 file.

In the case of KHBBS, it is stored into snd0.at3.
You can make your own .at3 file and use UMD Gen to replace the original with it.

* Some games have lba protection, so in those cases, you would have to export the file list first, and then make your alterations, then import the file list, and force it to match lba positions.

Hope that helps !    



EDIT:  hope I understood you correctly..  I believe you wanted to replace the sound it plays when you display the game in xmb ??  

(This post was last modified: 08/09/2010 04:56 PM by Mr. Shizzy.)