: Likely refers to the source being a Bilibili Global stream or a specific regional Blu-ray release. 3840x2160 : The resolution, which is 4K Ultra HD .
The string you provided appears to be a technical file name for a digital media release, typically associated with high-quality video encoding groups. Based on the naming convention, [ ] - 08 (B-Global 3840x2160 HEVC AAC MKV) [AF1...
: Part of the tag for the Release Group or encoder responsible for the file. : Likely refers to the source being a