AC3, also known as Dolby Digital, is an audio compression technology. In this specific file, the AC3 tag indicates that the release maintains multi-channel surround sound (typically 5.1 surround sound) instead of downgrading the audio to standard two-channel stereo (MP3). This ensured that even though the video was compressed, the cinematic audio experience was preserved for home theater systems. 5. The Release Group: PULSAR
"Anna Karenina" is a 2012 romantic drama film directed by Joe Wright, based on the novel of the same name by Russian author Leo Tolstoy. The film stars Keira Knightley as Anna Karenina, Aaron Taylor-Johnson as Vronsky, and Matthew Macfadyen as Karenin. Anna.Karenina.2012.BRRIP.XVID-AC3-PULSAR