I had this problem.
First off, for the info.pac, are you using ALSTT? If so, I hope you're usin' Notepad or something related, not Wordpad. It messed up for me
yeh just realized when i have the mu_menumain.pac in its fine but when i have the info.pac it messes up. apparently its corrupted. i had an info.pac with like 5 edited songs, that one works. the one with like 20 edited songs messes up n it wont load. No, i am not using Notepad nor Wordpad. Im using HxD. do u recommend that i use ALSTT? could u link me to that program? if its even a program lol