作者16:9

Audio: Advanced Audio Coding (AAC)
Also MPEG-4 Part 3 audio objects, such as Audio Lossless Coding (ALS), Scalable Lossless Coding (SLS), MP3, MPEG-1 Audio Layer II (MP2), MPEG-1 Audio Layer I (MP1), CELP, HVXC (speech), TwinVQ, Text To Speech Interface (TTSI) and Structured Audio Orchestra Language (SAOL)
Other compression formats are less used: Apple Lossless, Free Lossless Audio Codec (added in late 2018), and Opus (added in late 2018)

所以沒有
LPCM 5.1/DTS-HD/Dolby TrueHD?
這跟您一開始說的
封裝格式 跟 內容物 的quality 是沒有關聯性的…
好像不太一樣^^?