splitting then combining

I am trying to stream capture a 2 hour international live radio show. During the 2 hours, it has split the capture into multiple files even though I didn't tell it to. I think it's because the live radio stream connection got lost. Some days, it's just 1 file but most of the time it's 4-5 files.

I'm using Replay A/V Version 8.43 and 'Automatic retuning enabled'. So I think the retune feature is broken or not working on this stream capture. Would you like the full log_activity?

What are some ways I can combine all the files back into 1? If possible, have it be automated like the scheduled recordings.