In the late 1990s, the "Format Wars" weren't just about data; they were about the soul of sound. On one side stood the DVD-Audio camp, and on the other, Sony and Philips with their Super Audio CD (SACD)
If you are a professional requiring NexStage for commercial work, you should contact Sonic Studio LLC directly for a demo or license. If you are a hobbyist looking to burn an SACD, search for "DSD to SACD ISO authoring tools" rather than the professional NexStage suite. sonic studio nexstage sacd creator free