now that I have been doing some tests with this game lately on PS3 and also will replay it there, I thought I can share this "Karma" MOD I have done some years ago when I have played it on PS2. I call it "Karma" MOD, since I really love this song from Bump of a Chicken and I have remade the intro video with vocals and also japanese and english karaoke subtitles. I think I have found the original video on youtube but not sure there. besides I have changed the default battle sound to Karma, of course 
additionally I have included the japanese voiced skits, cause it is boring to only see those on the US version. there is already an undub version, but this isn't the same and the rest remains with english voices.
btw, I have found a very handy diff and patch tool for this, since no other tool can handle very large files.
http://jojodiff.sourceforge.net/
to patch your iso, just drag and drop the image file on the included batch file.
https://www.dropbox.com/s/41axpni9fvopnln/Tales_of_the_Abyss_MOD.rar?dl=0
additionally I have included the japanese voiced skits, cause it is boring to only see those on the US version. there is already an undub version, but this isn't the same and the rest remains with english voices.
btw, I have found a very handy diff and patch tool for this, since no other tool can handle very large files.
http://jojodiff.sourceforge.net/
to patch your iso, just drag and drop the image file on the included batch file.
https://www.dropbox.com/s/41axpni9fvopnln/Tales_of_the_Abyss_MOD.rar?dl=0