The games DO compress but not all work. I tried DBZ Shin Budokai (USA) refused to work. I used the flash0 and flash1 from lightforce fix previously with mph game loader and umd emulator before and it works perfect, but DAX after you load system menu and click on Shin Budokai it starts to load but the circle in the bottom right corner freezes on a blank wallpaper (no icons yet) happens everytime. Only worked well with exit (JAP with english patch). I'd steer clear from this program until all the bug fixes are done.