How can I jump to a chapter in my SCM audiobook?

When you purchase an audiobook from SCM, we send you two files. One is an mp3 which does not have chapter markers—the mp3 format doesn't allow chapter markers.

The other file is an m4a which has chapter markers that allow you to jump to the beginning of each chapter in the book. In the app you are using to play the m4a audiobook file, you may see a menu called something like Chapters which will allow you to select a chapter.