The Dolby Atmos Mastering Suite is designed for nearfield mixing rooms being used to create content for Blu-ray and Streaming Delivery.  This software is not designed for mixing movies in large theatrical mix rooms, or creating master files destined for DCP Delivery.  For this workflow a cinematic RMU is needed, which is provided to approved rooms through the existing Dolby Content Services Group.

The Dolby Atmos Mastering Suite allows for creation of Home Entertainment Dolby Atmos master files (.atmos) ADM BWF.wav and IMF IAB.mxf files , whereas the dedicated Cinematic RMU allows creation of PRM style print masters, along with the DCP MXF Atmos file.