: Every subtitle block must follow this exact four-line structure: Line 1 : Sequence number (start with 1, then 2, etc.). Line 2 : Timestamp in HH:MM:SS,MS --> HH:MM:SS,MS format. Line 3 : The subtitle text. Line 4 : A blank line to separate it from the next block.
You can create an SRT file from scratch using standard software already on your computer.
: Go to File > Save As and name your file with the .srt extension (e.g., mysubtitles.srt ). Ensure the file type is "All Files" so it doesn't end up as a .txt file.