what i do:

• i downloaded a section
• i open VLC
• i select "Advanced File open"
• i selected the folder of a section

what i see:

• when there are lectures with >9 numbers
• then the lecture 10 start right after lection 1

what i expect

• lectures in right order

how to fix:

• allow lecture and section numbers formatte with leading zero:
  1 --> 001
  2 --> 002
  10 --> 010