Mastering engineer at [l=Optimal Media GmbH], formerly known as [l=Optimal Media Production].
Note: The company does not release the full name of the engineer.
Other mastering engineers employed there, are [a=Bk (14)], [a=HL (2)] (Heino Leja), [a=KL (5)], [a=KR (3)] and [a=TW (5)].