The main difference between DTS and Dolby Digital is in the bitrates and compression levels. While both standards are relatively close in audio performance, there are certainly some technical differences that separate them. DTS-HD Master Audio: 7.1 max channel sound at 24.5 megabits per second (“lossless” quality available on Blu-Ray discs).DTS-HD High Resolution: 7.1 max channel sound at 6 megabits per second (supported by services like Netflix).