: Likely an abbreviation for the series title. While not a standard acronym for major long-running series, it may refer to a specific title like Sword Art Online: Integral Factor (if adapted) or a similar niche production.

If you are looking to work with or "create" similar files from your own media (such as physical discs), standard tools include:

: This tag often refers to the source or a regional classification. In many media contexts, "ACB" stands for the Australian Classification Board , suggesting this specific rip may have originated from or been tagged for an Australian streaming service or Blu-ray release.

The filename appears to refer to a specific digital release of an anime or video series, likely distributed by a fan-subtitling group. Based on common file-naming conventions in the media-sharing community, File Name Breakdown

: The Matroska Video (MKV) container format, which supports multiple audio and subtitle tracks in a single file. How to Manage This File Type