In respect of high res audio streaming services, this is what the RIAA says as part of its high res audio initiative: "A number of data packing technologies are being developed that can support the streaming of hi-res music files to consumers in a more efficient manner, including MQA (Master Quality Authenticated) and MPEG 4 Audio SLS. These and other approved technologies will enable licensed services to display the Hi-Res MUSIC logo mark on their landing page or next to an individual album or track. If the resolution of a recording falls below the required minimum standards of the Hi-Res MUSIC definition at any time, the user will be made aware of this change." link here. At least to the major labels, both technologies are alternate approaches for high-res audio streaming services.