Gundam Side Story 079 Question?

[cannibalstudios]

I tried playing a backup copy of Gundam Side Story 079, it loads up the title screen, movies and all but when I hit the start button when asked it goes to a VMU screen where you have to pick one. Then when you select the VMU you want it gives this caution sign in japanese and then goes back to the start menu. Cannot get past the start screen. . .please help!