I'm trying to play LittleBigPlanet 3 (US) physical copy, But when i click on BD-ROM Drive (E: ), it says: Please insert a disc into drive E:. How do i play physical games?
If you put your Disc in your Blu-Ray drive and nothing shows up, it means your BD Drive isn't compatible with PS3 games. Not all are, a list of known drives is on Quickstart Guide.