I'm not kidding. I was replaying my buddy's old FFVIII save file and got all characters to max levels on Disc 3 just before Lunatic Pandora. Then, I watched videogamesheaven's story walkthrough for God knows how long. Finally, I got on my high horse and went for it. Not lying, after I killed Seifer and it told me to change to disc 4, the disc wouldn't work. FML

But ya, you're post prompted me to answer given my current situation.