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Burning the Office (US) blu rays and the tracks have 4-6 audio tracks checked, some have the same name, what is the difference between them? Looks like this

DTS-HD MA Stereo English
DTS Stereo English
DTS-HD MA Stereo English
DTS Stereo English
DTS-HD MA Stereo English
DTS Stereo English

DTS-HD MA tracks are lossless. Without the HD MA, they're the "lossy core" of the lossless track, extracted by MakeMKV for compatibility with systems that can't deal with the lossless version.

The 3 pairs of tracks could be "main audio", "commentary audio", or even separate tracks for "actor" and "director" commentary. It depends on how the disk was authored and what features it has.