A while back ashima were sending their rotors out with the markings on the 'wrong' side, they said it was fine to run them that way. I.e the way you have yours.
The picture isnt working now but you can see it on google images by typing 'ashima rotor fail', you cant miss it.
The were pretty prompt to change the way they should be mounted.
Id say yours are the wrong way, cant see it varying much between manufacturer.
The problem would be that the braking force will be trying to pull the contact patch away from one of the 'arms'.
When mounted the correct way the force will dissipate down the arm.