Subtitle Risen2021.1080p.web-dl.dd5.1.h.264-evo... [OFFICIAL]

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: This is the name of the release group (the people who ripped and shared the file online). subtitle Risen2021.1080p.WEB-DL.DD5.1.H.264-EVO...

: This refers to the audio format . It stands for "Dolby Digital 5.1" surround sound (five speakers and one subwoofer). : This is the source