This is just a quick example, using the subtitles shared here:
https://www.first-loves.com/forums/view ... 13#p110513
(I decided I did not want to clutter a movie thread with boring tech talk, like I usually do.)
I looked at the numbers in SubtitleEdit and I can see that there were 12 lines that were under one second in length. Fortunately they were short bits of dialog -- at least in English. Only half of them could be lengthened without overlapping other dialog lines, and the ones that could be "fixed" were STILL under a second! And with a minimum gap between subtitles of 24 milliseconds, it only lengthened the "fixable" ones by 1 millisecond! I think the best way to deal with that is to go to a "Too Short" line of dialog and merge it with the one before it or after it, whichever makes the most sense. That way you can get two short lines of dialog combined, on screen together for long enough to read them both. I am not going to actually bother because in this case I don't think it will keep me from understanding it even if I miss a few lines. I showed a sample Merge below, for when someone judges it necessary to do the merges. Carefully read the details shown in the screenshots.