midv912engsub: This part suggests a specific video identifier or title, possibly "midv912" with a specification that it includes English subtitles ("engsub").
Part 5: Understanding "Min+Hot" – Metadata and Scene Tagging
"Min" – Minimum or Minute?
As “minute” – 01:58:56 (minute 58 of hour 1).
As “minimum” – Users may seek the smallest file size for a hot scene (e.g., 150MB clip).