Compatibility list & games

[jaiter]

Well I have been making backups of my games and not all of them work even when I check the compatibility list it has the green check marks on int. and usb but still don't work. I am installing on the internal hard drive. Just wondering if i am missing something or if they just plainly don't work? The games are assassins creed and rockband. Thanks.

[DAXALE]

Yeah I have the same problem. Could anybody fix the list and make it simple?

Cuz there are things that I don't understand.

[blitzsnake]

I know for a fact that AC1 doesn't work as a backup, at all, as stated in the compatibility list.