Amazon Music offers a wide variety of music formats. In addition to standard definition (SD) audio, some tracks in the Amazon Music catalog are available in high-definition (HD) and ultra-high-definition (UHD) lossless formats. Amazon Music also supports spatial audio in Dolby Atmos and Sony 360 RA formats.
Please note that not every audio track is available in all formats and only standard definition (SD) is available for the Free and Prime subscription tiers.
Read our docs for the full list of supported audio formats and codecs: