Bernie Grundman Mastering Tokyo is a full-service mastering facility specializing in the final creative adjustments to optimize recordings for maximum effectiveness before commercial release or demonstration use. The studio is overseen by the Hollywood office, including maintenance and modifications of the mastering systems. The Tokyo studio receives all the latest improvements developed in Hollywood, as well as custom designed changes they initiate to satisfy any special preferences. The Tokyo studio has long been using a 4D-based account system developed by the manager himself.