As to disc formats, because I work in PCM, not DSD, it’s a choice between Blu-Ray and DVD-A. Both can accept DTS-HD Master Audio which is a lossless multichannel codec capable of 24/96 PCM audio. It’s essentially the same as MLP. DTS-HD MA also embeds a lossy lower bitrate codec for back-compatibility with older players, and a fold down for stereo. Blu-Ray as a container has more space for including other stereo and archival mix content, but it has a more expensive production cycle.
Any thoughts?
If Blu-Ray or DVDA-V production is what you are after, then you have to speak with Neil Wilkes, who runs Opus Productions in the UK.
Unfortunately, he's no longer actively on this forum (having last been here almost 2 years ago) but I would be more than happy to send you a private message with his email so you can get in contact with him.
His Blu-Ray & DVDA-V authoring work includes releases for King Crimson, The Pineapple Thief, Porcupine Tree, XTC, Yes, and many others!