Audiobook File Formatting for Creator Portal

How should I format an Audiobook for the Creator Portal

File Type: MP3
File Upload: Each chapter must be uploaded individually. Zip files are not currently compatible.

File Naming: Must look like below
00 Intro.mp3
01 Preface.mp3
02 Chapter 1.mp3
03 Chapter 2.mp3
04 Chapter 3.mp3
05 Chapter 4.mp3
06 Chapter 5.mp3
07 Chapter 6.mp3
08 Chapter 7.mp3
09 Chapter 8.mp3