I am sorry to report we did not receive Stellar's discs, so we called them. They now refuse to provide us with discs to test with. 
We were very suprised at their refusal. Please note this accordingly in your future purchases.....................
We are still at ground zero. Now we have to find 2 or 3 of the PHM discs that you folks have mentioned here. We'll be on that next week as we are leaving town this afternoon and are out tomorrow also.