I downloaded the ZIP file and burned the MP3s to a disk and listen to it in my car, and the problem is that the files are read (or burned) in alphabetical order, which means file1, file10, file11, file12…..file19, file2….
I don’t know if this is your issue…..but this is how it works for me with ALL the courses……it would be better for my burner / reader had the classes been numbered / counted up with alpha designators. eg: file_a, file_b, file_c, ….
This at least is my problem.
-Quentin