All right, I’m fooling around with these m2ts files in tsmuxer, and I think I get the principle of what I’m trying to do with the audio substitutions, but I need a couple of things clarified. I’m using the cutting feature to split the audio after the flyover, and it’s pretty straightforward for the first part, but how do I tell the software to cut the audio however many minutes into the second m2ts file, but to keep the picture from the beginning? Do I want to demux to isolate the audio, cut that, and then import it again to join it to 0004.m2ts? Also, if the crawl and flyover is 0:02:27:058 long, do I want to start the audio for the second part at 0:02:27:058 or 0:02:27:059? And I’m assuming when I have these new m2ts files, I can just swap them with the old ones in the BDMV folder? I get that this isn’t really the place to ask for technical walkthroughs, but I figure a good amount of folks here are probably trying to achieve the same thing. I’m happy to move this to a PM if anyone would like to help me out without further cluttering the thread.