Older movie releases often come in two parts (CD1 and CD2), each with its own subtitle file. If you join the video into one file, the subtitles of part 2 must be joined too, and moved to start where part 1 ends.
What merging does
- Keeps every subtitle of part 1 as is.
- Adds the subtitles of part 2 after it, shifted by the length of part 1.
- Numbers all blocks again from 1.
Merge online
The free merge subtitles tool joins two SRT files. Load both files: it fills in the time of the last subtitle of part 1 as the start of part 2. Change that offset to the length of the CD1 video for an exact match. It runs in your browser, nothing is uploaded.
Finding the right offset
- The duration of the CD1 video file, shown by any player, is the most accurate offset; the last subtitle of part 1 usually ends a little earlier.
- If part 2 is still a little off, play the merged video, note the difference on one line, and adjust with shift subtitle timing.
Not the same as bilingual subtitles
Merging CD1 + CD2 joins two files one after the other. To show two languages at the same time, use the bilingual subtitles tool instead.