The IdolM@ster Shiny Festa: Funky Note - JP - NPJH50676

[gid15]

could you also fixed The IdolM@ster Shiny Festa: Honey Sound - JP - NPJH50674 and The IdolM@ster Shiny Festa: Groovy tune - JP - NPJH50675
That 3 game are almost the same game.

Could you try if they are using the same Xor encryption?
Change jpcsp/HLE/VFS/filters/VirtualFileFilterManager.java, line 42:

Code:

        if ("NPJH50676".equals(State.discId) || "NPJH50674".equals(State.discId) || "NPJH50675".equals(State.discId)) {

Also for the DLC content, I suspect they are not Xor encoded. Could you try to disable the code on line 43 (comment the line) and see if you can play the audio from the DLC?