Alright this should be easy then, go to debug settings and scroll down to Blu-Ray Disc Access and make sure it says "BD Drive" if it doesn't say it then well change it...then go to multiman and go to settings and go down to "Hide BD-ROM Disc from Game List" make sure it says "No" if it doesn't press it and change it to "No"..then go all the way down and Select "BD-ROM Emulator" Make sure it says "Enable" if it doesn't, well change it

Restart your playstation 3 and tell me if it works. Hope I've helped