Are there any tools around to help me merge two subtitles files in SRT format? The situation is that I have a film which is a single file in MPG format but the subtitles for the film span two files. Both of the SRT files start at 0 so clearly they were meant for a version of the film that was split into two files. I'm not having any luck finding either a two-file version of the film or a one-file version of the subtitles so I thought I'd merge the SRT files since they are simple text files. (If it's simpler to slice the MPG file into two parts where I can choose the exact spot to make the slice, please tell me how to do that instead.) Physically copying the two SRT files into one file isn't a problem but, since the second SRT file starts from 0 instead of roughly an hour and 10 minutes into the film, I need to edit each and every start and end time in the second SRT file to make it sync up with the film. Therefore, the start and end times for the first subtitle in the second half of the film needs to change from 00:00:06,360 --> 00:00:08,954 to roughly 01:10:06,360 --> 01:10:08,954. And the same needs to be done for each other entry in the file. That's a time-consuming and error prone bit of work so I was wondering if there are any free tools that I can use to do this for me in seconds instead of hours?