i have a PSP Slim with 3.90 M33-3 installed. whenever i try to play Me & My Katamari compressed, it gets stuck at the initial now loading screen. i've tried UMDGen 4 and PSP ISO Compressor, and the both don't work. I even tried just deleting the update with UMDGen, but it always does the same thing. i can play a clean ISO with no problems, so i'm sure it's not corrupt. i was hoping someone has had a similar problem, or could at least point me in the right direction as i'm kinda new at PSP hacking. btw, every other ISO i've compressed has worked fine, so i have a decent grasp of things. thanks in advance!