Special options for importing with ONIX 3.0

<ProductForm>AJ</ProductForm>
<ProductFormDescription>Digital Audio, MP3</ProductFormDescription>
<ProductContentType>01</ProductContentType>

To indicate the duration of the audiobook in minutes (optional):

<Extent>
<ExtentType>09</ExtentType>
<ExtentValue>385</ExtentValue>
<ExtentUnit>05</ExtentUnit>
</Extent>

To indicate the number of tracks that make up the audiobook (optional):

<Extent>
<ExtentType>09</ExtentType>
<ExtentValue>385</ExtentValue>
<ExtentUnit>11</ExtentUnit>
</Extent>