You could ask over there. I do know if you don’t have the ‘-’ in your FB tags it won’t go in the file name and the same is probably true for ‘cd1’ as well. I assume. I’ve not had to fiddle with that function.
Yea.
Dump the AVI files into MKVToolNix and hope you can join 'em together - to make one:
I don’t know if that will work with your AVI files - so Dump the AVI files and get one of anything else.
