If your subs are external ( subs.srt ):

: This is a production code. It most likely refers to a specific entry in a Japanese adult video (JAV) series. In this context, "JUR" is often the label code for the studio or series.

To cut from 00:20:06 to the end:

The presence of "convert" and specific numeric strings usually suggests the file was processed through a web-based converter to reduce file size or change formats for mobile viewing.

If you need to to match the new start time:

(e.g., converting a surveillance or legal video with English subtitles, starting from the 2 hour, 0 minute, 6 second mark).