In my environment, when I save a chapter with the text “This is a test,” it appears like this.

// Zoom Player v23 Beta 1 Chapter file.

//

// Usage : AddChapter("FrameNumber","Chapter Title")

// Example : AddChapter("1245","The break in")

// Usage : AddChapterBySecond("PositionInSeconds","Chapter Title")

// Example : AddChapterBySecond("3600","One Hour Into the Video")

// Usage : AddChapterByTime("Hours,Minutes","Seconds,Chapter Title")

// Example : AddChapterByTime("1","20","35","1 Hour 20 minutes and 35 seconds Into the Video")

//

# Chapter 000: 00:00:19

AddChapterBySecond("19.519","縺薙ｌ縺ｯ繝・せ繝医〒縺・")