As a non-coder I feel unqualified to be here yet I'm very attached to Join files with MP4Box [2022-04-21] and don't know of another site where coders have been so kind.
I've used this shortcut a lot in the past couple years to archive an audiobook collection and it's only now that I've discovered I'm doing something to sometimes make the file order go astray. In the MacOS 10.15 Finder I double-click on the folder to open it and take care to always sort by name. I select the files from top to bottom and press my shortcut. Soon I have my file, which I play to check. In recent days about 30% are wonky and I just can't figure it out. Below is a screenshot of today's failure right before I joined them together (I now save the raw files to join in a far less elegant and convenient way). I've tried to read about splitting and concatenation but I lack even a basic coding vocabulary. I did try the same with another app, "Split&Concat" and got the same result, curiously. When I use "AudiobookBinder" it works fine, though.
Oh Chris THANK YOU so much! You are brilliant AND kind.
I hear you about excluding myself and appreciate your welcome. At the same time it took me thirty minutes to enable your macro, so... ; ) Seriously I'll study and hopefully expand some favorite automations. For now I'm just delighted to be able to use this one and reliably!