Audiobook Sort Order

Why are my audiobook files sorted like this?

2009-01-17

2008-05-21

2009-01-31

I have set the tags in Mp3tag to ID3v1 and ID3v2.3 ISO.  The album and artists are the same, and the track numbers are all 1.

SanDisk Technical Support has confirmed this is a bug. Please send them an email and encourage them to fix it.

support@sandisk.com

https://www.customernation.com/pls/ps/ps.ps_main?p_host=304&p_supplier=5096&p_parm=PVL