Viewtiful Joe (PS2) - trying to find and rip SFX

[Skyla Doragono]

From doing a little google searching, it looks like some of the files may be a type of MIDI-like file, which is probably why PSSound is hitting it and bugging out -- it doesn't like those kind of files and often crashes when you get to them.

As far as the doubles of the sound effects, they may not be actually doubled. I've found that PSSound will get "stuck" on a certain file and keep playing that same file over and over until you hit something else. There may not actually be that many duplicates. I had this same issue with the PS2 Persona games.

Godspeed for you doing this.
Any idea if VJ2 uses the same format for sound as VJ1?

If the same team worked on it, it's possible. Most won't change compression format between games unless they absolutely need to.