: The source material. This version is superior to the original TV broadcast, often featuring corrected animation, improved lighting, and higher bitrates.
: Likely indicating the audio codec used is Free Lossless Audio Codec . This provides studio-quality sound, which was a hallmark of Coalgirls releases. Episode 24: "Selfless Devotion" [Coalgirls]_Durarara!!_24_(1920x1080_Blu-ray_FL...
: The title of the anime. It is based on a light novel series by Ryohgo Narita and follows a diverse cast of characters in Ikebukuro, Tokyo, including a headless motorcyclist (the Dullahan), rival color gangs, and an information broker. : The source material
Coalgirls was highly active during the early 2010s. Their releases were often considered the "gold standard" for collectors because they balanced file size with extreme visual fidelity. While the group is no longer active, their encodes—like this one for Durarara!! —remain popular in digital archives for their clean subtitles and preservation of the original Blu-ray's visual detail. This provides studio-quality sound, which was a hallmark